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C1 noun moʊst ˈvʌlnərəbəl ˈneɪʃən

most vulnerable nation

nación más vulnerable
Meaning
A country that is highly exposed to risks and lacks adequate protection or resilience.
Example
Bangladesh is one of the most vulnerable nations to climate change.
Bangladesh es uno de los países más vulnerables al cambio climático.
C1 noun nɪˈmɒnɪks

mnemonics

técnica de memoria, ayudas mnemotécnicas
Meaning
A technique to aid memory; a device such as a pattern of letters, ideas, or associations
Example
Mnemonics help in remembering complex concepts easily.
Los mnemónicos ayudan a recordar conceptos complejos fácilmente.
C1 noun /ˈmaɪkrəʊˌklaɪmæt/

microclimate

microclima
Meaning
The climate of a small, specific area that may differ from the general climate of the surrounding region, often influenced by local factors like terrain, vegetation, or buildings.
Example
A microclimate can have a significant impact on plant growth.
Un microclima puede tener un impacto significativo en el crecimiento de las plantas.
C1 noun /ˌmɛrɪˈtɒkrəsi/

meritocracy

meritocracia
Meaning
A system in which advancement is based on individual ability or achievement.
Example
In a true meritocracy, the most capable people rise to leadership positions.
En una verdadera meritocracia, las personas más capaces ascienden a posiciones de liderazgo.
C1 noun /ˈmæroʊ/

Marrow

médula ósea
Meaning
A soft fatty substance in the cavities of bones; the essence of something
Example
The bone marrow produces blood cells in the human body.
La médula ósea produce células sanguíneas en el cuerpo humano.
C1 noun /ˈmɒnəˌθiːɪzəm/

monotheism

monoteísmo
Meaning
The belief in the existence of only one God.
Example
Islam and Christianity are religions based on monotheism.
El islam y el cristianismo son religiones basadas en el monoteísmo.
C1 noun /ˈmænəˌrɪzəm/

Mannerism

manierismo
Meaning
A habitual gesture or way of speaking or behaving; an idiosyncrasy
Example
His constant throat clearing had become an annoying mannerism.
Su constante aclaración de garganta se había convertido en una molesta manera de actuar.
C1 verb /ˈmʌd.əl/

muddle

desordenar
Meaning
to mix things up in a confused way or to make a mess of something
Example
He muddled the papers and couldn’t find the report.
Él desordenó los papeles y no pudo encontrar el informe.
C1 noun /ˈmiːknəs/

Meekness

humildad
Meaning
The quality of being quiet, gentle, and submissive
Example
His meekness was often mistaken for weakness by his colleagues.
Su humildad a menudo era confundida con debilidad por sus colegas.
C1 noun /ˈmɒd.ə.sti/

Modesty

modestia; humildad
Meaning
the quality of being humble and not boastful about achievements
Example
Despite his success, he showed great modesty.
A pesar de su éxito, mostró gran modestia.
C1 noun /mɔːˈtæləti/

mortality

mortalidad
Meaning
the state of being subject to death; the death rate of a population
Example
Advancements in medicine have reduced child mortality significantly.
Los avances en medicina han reducido significativamente la mortalidad infantil.
C1 noun ˈmiːdiə ˈdɒmɪnəns

media dominance

dominio de los medios
Meaning
The control and powerful influence that media has over communication and information distribution in society.
Example
The internet has enhanced media dominance globally.
Internet ha aumentado el dominio de los medios a nivel mundial.
C1 verb, noun /mjuːz/

muse

meditar / fuente de inspiración
Meaning
to think deeply about something; a source of inspiration, especially for an artist or writer
Example
She sat by the window to muse about her future.
Ella se sentó junto a la ventana para pensar profundamente sobre su futuro.
C1 verb /ˈmɑːrdʒɪnəlaɪz/

marginalize

marginalizar, dejar de lado
Meaning
To treat a person or group as unimportant or insignificant.
Example
The policy marginalized minority communities.
La política marginó a las comunidades minoritarias.
C1 verb /ˈmɪŋɡl/

mingle

mezclarse
Meaning
to mix or combine; to move among people and engage socially
Example
Guests mingled at the party, chatting and laughing together.
Los invitados minglaban en la fiesta, charlando y riendo juntos.
C1 adjective /maɪˈkroʊ.bi.əl/

microbial

microbiano
Meaning
Related to bacteria, fungi, and other microscopic organisms.
Example
Microbial activity in the soil improves fertility.
La actividad microbiana en el suelo mejora la fertilidad.
C1 noun /ˌmælnuːˈtrɪʃən/

Malnutrition

malnutrición; nutrición deficiente
Meaning
Lack of proper nutrition; poor nourishment
Example
Malnutrition among children is a serious public health concern.
La malnutrición entre los niños es una grave preocupación de salud pública.
C1 noun /mɪˈlɪʃə/

militia

milicia
Meaning
a group of ordinary people who are trained to act as soldiers in emergencies
Example
The village formed a militia to defend against attacks.
El pueblo formó una milicia para defenderse de los ataques.
C1 adjective /ˈmoʊmənˌteri/

momentary

momentáneo
Meaning
Lasting for only a short time.
Example
There was a momentary silence in the room.
Hubo un silencio momentáneo en la habitación.
C1 adverb /ˈmiːk.li/

Meekly

de manera sumisa; humildemente
Meaning
in a quiet, gentle way; without resistance or protest
Example
He meekly accepted the criticism without arguing.
Él aceptó la crítica humildemente sin discutir.
C1 noun /mɪsˈɡɪvɪŋz/

misgivings

dudas, recelos
Meaning
feelings of doubt or concern about the outcome or propriety of something
Example
She had serious misgivings about signing the contract.
Ella tenía serias dudas sobre firmar el contrato.
C1 adjective ˈmær.ɪ.taɪm

Maritime

marítimo
Meaning
Connected with the sea, especially in relation to seafaring commercial or military activity.
Example
Maritime trade enhances the economy.
El comercio marítimo mejora la economía.
C1 noun /ˈmɛdli/

medley

mezcla
Meaning
A mixture of different things, especially musical tunes combined together.
Example
The band played a medley of popular songs.
La banda tocó una mezcla de canciones populares.
C1 noun /meɪl treɪn/

Mail train

tren correo
Meaning
a train that carries mail and postal packages
Example
The mail train departs every evening to deliver letters across the country.
El tren postal sale todas las tardes para entregar cartas a través del país.
C1 adjective /ˌmʌltɪˈfæsɪtɪd/

multifaceted

multifacético
Meaning
Having many different aspects or features
Example
The multifaceted approach to the problem resulted in innovative solutions.
El enfoque multifacético del problema resultó en soluciones innovadoras.
C1 noun /ˈmɜːrdʒər/

merger

fusión
Meaning
The combination of two or more companies into a single entity.
Example
The merger of the two firms created the largest bank in the region.
La fusión de las dos compañías creó el banco más grande de la región.
C1 adjective /ˌmiː.diˈoʊ.kər/

mediocre

mediocre
Meaning
Of only average quality; not very good.
Example
The movie was entertaining but overall mediocre.
La película era entretenida, pero en general mediocre.
C1 verb /məˈnuː.vər/

manoeuver

maniobrar
Meaning
To move skillfully or carefully; to guide or manipulate into a desired position.
Example
The driver skillfully manoeuvered the car through the narrow street.
El conductor maniobró hábilmente el coche por la calle estrecha.
C1 verb /ˈmæd.ən/

madden

enloquecer
Meaning
To make someone very angry or extremely annoyed.
Example
The constant noise maddened him.
El ruido constante lo enloqueció.
C1 verb /ˌmɪsˈpleɪs/

misplace

poner en el lugar equivocado
Meaning
To put something in the wrong location and temporarily lose it.
Example
I often misplace my keys when I am in a hurry.
A menudo pongo mis llaves en el lugar equivocado cuando tengo prisa.
C1 adjective /məˈlɪʃəs/

Malicious

malévolo; maligno
Meaning
having or showing a desire to cause harm to someone; spiteful
Example
The malicious software damaged many computers.
El software malicioso dañó muchas computadoras.
C1 noun ˌmek.ə.naɪˈzeɪ.ʃən

mechanization

mecanización
Meaning
The process of introducing machines or replacing manual labor with machines.
Example
Mechanization has revolutionized agriculture.
La mecanización ha revolucionado la agricultura.
C1 noun /ˈmɒn.ə.stər.i/

Monastery

monasterio; ashram
Meaning
a building or group of buildings where monks live and worship
Example
The ancient monastery was built on a hilltop.
El antiguo monasterio fue construido en la cima de una colina.
C1 noun /ˈmɜːrsəˌnɛri/

mercenary

mercenario
Meaning
a professional soldier hired to serve in a foreign army; also used to describe someone motivated solely by money.
Example
The mercenary fought for whoever paid the highest wage.
El mercenario luchó por quien pagó el salario más alto.
C1 adjective /ˈmaɪndləs/

mindless

sin sentido
Meaning
without thought or intelligence; done without consideration
Example
He was bored by the mindless tasks at work.
Estaba aburrido por las tareas sin sentido en el trabajo.
C1 adjective /ˈmɒnstrəs/

Monstrous

monstruoso; extremadamente grande; chocante o malvado; anormal o antinatural
Meaning
extremely large; shockingly evil or wrong; abnormal or unnatural
Example
The monstrous crime shocked the entire community.
El crimen monstruoso sorprendió a toda la comunidad.
C1 verb (past) /ˈmɛrɪtɪd/

merited

merecido
Meaning
Deserved or earned something.
Example
Her dedication merited recognition from the community.
Su dedicación mereció el reconocimiento de la comunidad.
C1 verb /mɑːr/

mar

estropear
Meaning
to spoil or damage the appearance or quality of something
Example
The scratch will mar the beauty of the painting.
El rasguño estropeará la belleza del cuadro.
C1 noun /məˈrɑːl/

Morale

moral; estado de ánimo
Meaning
the confidence, enthusiasm, and discipline of a person or group
Example
The team's morale improved after the victory.
La moral del equipo mejoró después de la victoria.
C1 adverb /ˈmɪdweɪ/

Midway

a mitad de camino; en el medio
Meaning
halfway; at or to the middle point
Example
The project is midway through completion.
El proyecto está a medio camino de su finalización.
C1 verb /ˌmɪsˈkaʊnt/

miscount

contar mal
Meaning
To count wrongly or inaccurately.
Example
He miscounted the number of chairs in the hall.
Él contó mal el número de sillas en el salón.
C1 noun /mjuːˈteɪʃn/

mutation

mutación, cambio genético
Meaning
A change in form, structure, or nature, especially in genetics.
Example
Scientists discovered a genetic mutation that caused the disorder.
Los científicos descubrieron una mutación genética que causó el trastorno.
C1 verb /ˈmɑːrʃəl/

marshal

organizar
Meaning
To arrange or organize people, events, or resources in an orderly way.
Example
The teacher marshaled the students for the field trip.
La profesora organizó a los estudiantes para el viaje de campo.
C1 noun ˌmɑːr.dʒɪ.nəl.aɪˈzeɪ.ʃən

marginalization

marginalización
Meaning
The treatment of a person, group, or concept as insignificant or peripheral.
Example
Economic policies should address the marginalization of the poor.
Las políticas económicas deben abordar la marginalización de los pobres.
C1 noun ˌmɪtɪˈɡeɪʃən ˈstrætədʒiz

mitigation strategies

estrategias de mitigación
Meaning
Plans and actions designed to reduce the severity or impact of problems or risks.
Example
Governments must adopt mitigation strategies for climate change.
Los gobiernos deben adoptar estrategias de mitigación para el cambio climático.
C1 noun ˌmɒd.ɪ.fɪˈkeɪ.ʃənz

modifications

modificaciones
Meaning
The action of making partial or minor changes to something.
Example
DNA modifications enable enhanced traits in crops.
Las modificaciones del ADN permiten características mejoradas en los cultivos.
C1 noun /ˈmɑːrtər/

Martyr

mártir
Meaning
A person who is killed because of their religious or political beliefs
Example
He became a martyr for the cause of freedom and democracy.
Se convirtió en un mártir por la causa de la libertad y la democracia.
C1 adjective /məˈlɪɡnənt/

malignant

maligno
Meaning
dangerous or harmful in influence or effect; medically, tending to invade and destroy tissue
Example
Doctors confirmed that the tumor was malignant.
Los doctores confirmaron que el tumor era maligno.
C1 noun /ˈmɪd.waɪf/

midwife

partera
Meaning
A person, typically a woman, trained to assist women during childbirth.
Example
The midwife stayed with the mother throughout her labor.
La partera estuvo con la madre durante todo su trabajo de parto.
C1 noun /ˈmɒdɪfaɪər/

modifier

modificador
Meaning
a word or element that changes, limits, or describes the meaning of another word; something that alters or adjusts
Example
In the phrase 'very cold', 'very' is a modifier of 'cold'.
En la frase «very cold», «very» es un modificador de «cold».
C1 noun ˌmʌn.ɪ.taɪˈzeɪ.ʃən

monetization

convertir un activo o servicio en una forma de ganar dinero
Meaning
Converting an asset or service into a way of earning money.
Example
YouTube allows content creators to earn money through monetization.
YouTube permite a los creadores de contenido ganar dinero a través de la monetización.
C1 noun /ˈmelənkəli/

Melancholy

melancolía; tristeza pensativa o suave
Meaning
A feeling of pensive sadness; thoughtful or gentle sadness
Example
A deep melancholy settled over him after reading the old letters.
Una profunda melancolía se apoderó de él después de leer las viejas cartas.
C1 noun /ˈmeɪhɛm/

mayhem

caos
Meaning
Violent or extreme disorder; chaos and destruction.
Example
The protest turned into mayhem when the crowd clashed with the police.
La protesta se convirtió en caos cuando la multitud chocó con la policía.
C1 noun /ˈmeɪniæk/

maniac

maniaco
Meaning
a person who behaves in a wildly foolish, dangerous, or violent way
Example
The driver was speeding like a maniac.
El conductor estaba conduciendo como un maníaco.
C1 adjective /mʌnˈdeɪn/

mundane

mundano
Meaning
lacking interest or excitement; dull and ordinary
Example
She tried to escape her mundane routine by traveling.
Ella intentó escapar de su rutina mundana viajando.
C1 noun /mɔːrɡ/

morgue

depósito de cadáveres
Meaning
a place where dead bodies are kept, especially to be identified or claimed
Example
The police took the body to the morgue for identification.
La policía llevó el cuerpo al depósito de cadáveres para su identificación.
C1 noun /ˌmɪdˈsʌm.ər/

midsummer

mediados del verano
Meaning
The middle of summer, often around the summer solstice in June.
Example
We had a festival to celebrate midsummer.
Tuvimos un festival para celebrar el mediado del verano.
C1 noun /mæɡˈnɪfɪsəns/

magnificence

magnificencia
Meaning
splendor, grandeur, or impressive beauty
Example
The magnificence of the palace left everyone speechless.
La magnificencia del palacio dejó a todos sin palabras.
C1 adjective /ˈmænɪfoʊld/

Manifold

múltiples
Meaning
many and of several different types; multiple; various
Example
The project has manifold benefits for the community.
El proyecto tiene múltiples beneficios para la comunidad.
C1 noun /mɒnˈtɑːʒ/

montage

montaje
Meaning
A sequence of film editing or a composite image made by combining several separate pictures.
Example
The film opened with a montage of city life.
La película comenzó con un montaje de la vida en la ciudad.
C1 adjective /ˈmɔːtəl/

Mortal

mortal; perecedero; humano
Meaning
subject to death; having a limited lifespan; human
Example
All human beings are mortal and will eventually die.
Todos los seres humanos son mortales y eventualmente morirán.
C1 adjective /ˈmʌðərli/

Motherly

maternal
Meaning
having qualities characteristic of a mother; caring and protective
Example
She showed motherly care and affection towards all the children.
Ella mostró cuidado y afecto maternal hacia todos los niños.
C1 noun /ˈmɑːrtərdəm/

Martyrdom

martirio
Meaning
The suffering of death on account of adherence to a cause or principle
Example
His martyrdom inspired countless others to join the freedom movement.
Su martirio inspiró a innumerables otros a unirse al movimiento por la libertad.
C1 noun ˌmɒdɪfɪˈkeɪʃn

modification

modificación
Meaning
The action of making changes to something.
Example
The plan required modification.
El plan requirió modificación.
C1 noun /ˈmɒnəˌlɒɡ/

monologue

monólogo
Meaning
A long speech by one person, often in a play or performance.
Example
The actor delivered a powerful monologue on stage.
El actor entregó un poderoso monólogo en el escenario.
C1 noun /ˈmæɡnɪtuːd/

Magnitude

magnitud; tamaño; importancia
Meaning
The great size or extent of something; importance
Example
The magnitude of the earthquake was measured at 7.5 on the Richter scale.
La magnitud del terremoto se midió en 7.5 en la escala de Richter.
C1 noun məˌtɪərɪəˈlɪstɪk ˈlaɪfstaɪl

materialistic lifestyle

estilo de vida materialista
Meaning
A way of living focused on acquiring material possessions and wealth.
Example
A materialistic lifestyle often leads to moral decline.
Un estilo de vida materialista a menudo lleva al declive moral.
C1 noun /məˈtɜːrnəti/

Maternity

maternidad
Meaning
The state of being a mother; motherhood
Example
The hospital has an excellent maternity ward for new mothers.
El hospital tiene una excelente sala de maternidad para nuevas madres.
C1 noun /mɪkst ɪˈkɒn.ə.mi/

mixed economy

economía mixta
Meaning
An economic system where both government and private sector operate together.
Example
Most countries today follow a mixed economy model.
Hoy en día, la mayoría de los países siguen un modelo de economía mixta.
C1 noun/verb mælˈfʌŋk.ʃən

malfunction

fallo
Meaning
A failure to function normally or satisfactorily; a defect or breakdown.
Example
The engine malfunctioned due to overheating.
El motor falló debido al sobrecalentamiento.
C1 noun /məˈmɛn.toʊ/

memento

recuerdo
Meaning
An object kept as a reminder of a person, place, or event.
Example
She kept the ticket as a memento of their first concert together.
Ella guardó el boleto como un recuerdo de su primer concierto juntos.
C1 noun /ˈmeɪ.triˌɑːrk/

matriarch

matriarca
Meaning
A woman who is the head of a family or community.
Example
The matriarch of the family made all important decisions.
La matriarca de la familia tomó todas las decisiones importantes.
C1 adjective /ˈmɑːr.dʒɪ.nəl/

Marginal

marginal; mínimo; leve
Meaning
relating to or situated at the edge; minimal; slight
Example
The marginal improvement in sales was barely noticeable.
La mejora marginal en las ventas fue apenas notable.
C1 noun /ˈmɛm.wɑːr/

memoir

memoria
Meaning
A historical account or autobiography written from personal experience.
Example
The author’s memoir details her journey through hardship and success.
La memoria de la autora detalla su viaje a través de dificultades y éxitos.
C1 noun /məˈdɜːrnəti/

modernity

modernidad
Meaning
The quality or condition of being modern; up-to-date ideas, practices, or style.
Example
The city’s architecture reflects both tradition and modernity.
La arquitectura de la ciudad refleja tanto la tradición como la modernidad.
C1 noun məˈriːn ˈsɜː.veɪ

marine survey

estudio marino. levantamiento marítimo.
Meaning
A systematic examination of the sea, seabed, and underwater features for the purpose of making maps or gathering other information.
Example
The marine survey identified the ideal cable routes.
El estudio marino identificó las rutas ideales para los cables.
C1 noun /meɪn/

mane

melena
Meaning
the long hair growing on the neck of a horse, lion, or other animal
Example
The lion shook its thick mane proudly.
El león sacudió su espesa melena con orgullo.
C1 adjective /məˈtɜːrnəl/

Maternal

maternal
Meaning
relating to a mother; motherly
Example
She showed maternal care towards the orphan child.
Ella mostró cuidado maternal hacia el niño huérfano.
C1 noun /ˈmɒn.ə.təʊn/

monotone

tono monótono
Meaning
A continuous sound, especially of a person's voice, that does not rise and fall in pitch.
Example
The teacher's monotone made the lecture hard to follow.
El tono monótono del profesor hizo que la conferencia fuera difícil de seguir.
C1 adjective /ˈmjuːtɪd/

muted

atenuado
Meaning
softened in sound, color, or effect; subdued
Example
The room was painted in muted shades of blue and grey.
La habitación fue pintada en tonos atenuados de azul y gris.
C1 noun /ˈmætɪneɪ/

matinee

función de la tarde
Meaning
A performance, especially a play or movie, that takes place in the afternoon.
Example
We bought tickets for the Sunday afternoon matinee.
Compramos entradas para la función de la tarde del domingo.
C1 adjective /məˈlɛvələnt/

malevolent

malévolo
Meaning
Having or showing a wish to do evil or harm to others.
Example
The malevolent glare in his eyes frightened the children.
La mirada malévola en sus ojos asustó a los niños.
C1 adjective /ˌmɪsəˈleɪniəs/

Miscellaneous

misceláneo; diverso; mezclado
Meaning
various; diverse; mixed; assorted
Example
The box contained miscellaneous items from different periods.
La caja contenía artículos diversos de diferentes períodos.
C1 noun /ˈmæk.rəʊˌnjuː.tri.ənts/

macronutrients

macronutrientes
Meaning
Nutrients that are needed in large amounts to provide energy and building materials for the body, including carbohydrates, proteins, and fats.
Example
Proteins, fats, and carbohydrates are vital macronutrients.
Las proteínas, las grasas y los carbohidratos son macronutrientes vitales.
C1 noun /ˈmʌs.tərd siːdz/

Mustard seeds

semillas de mostaza
Meaning
small round seeds from the mustard plant, used as a spice and for making mustard condiment
Example
Mustard seeds are often tempered in hot oil to release their nutty flavor before adding to dishes.
Las semillas de mostaza a menudo se temperan en aceite caliente para liberar su sabor a nuez antes de agregarlas a los platos.
C1 noun /ˌmɑːr.kɪ.təˈbɪl.ə.ti/

marketability

comercialización
Meaning
The possibility of commercial success for a product or service
Example
The new product's marketability depends on consumer demand.
La comerciabilidad del nuevo producto depende de la demanda de los consumidores.
C1 noun /ˌmaʊntəˈnɪə/

mountaineer

montañero
Meaning
A person who climbs mountains as a sport or profession.
Example
The mountaineer reached the summit after a long climb.
El montañero llegó a la cima después de una larga subida.
C1 noun /ˌmɪsˈkɒn.dʌkt/

Misconduct

conducta inapropiada
Meaning
Unacceptable or improper behavior, especially by a professional person
Example
The officer was dismissed for professional misconduct.
El oficial fue despedido por conducta inapropiada profesional.
C1 adjective /ˌmaɪ.krəˈskɑː.pɪk/

microscopic

microscópico
Meaning
Extremely small and only visible with a microscope.
Example
The sample contained microscopic particles.
La muestra contenía partículas microscópicas.
C1 adjective /moʊˈmentəs/

Momentous

importante
Meaning
of great importance or significance; having far-reaching consequences
Example
The signing of the peace treaty was a momentous occasion for both countries.
La firma del tratado de paz fue una ocasión importante para ambos países.
C1 noun /ˈmælɪs/

Malice

maldad; rencor; animosidad;
Meaning
The intention or desire to do evil; ill will
Example
There was no malice in his criticism, just honest feedback.
No había malicia en su crítica, solo retroalimentación honesta.
C1 verb /ˈmæɡnɪfaɪ/

magnify

magnificar
Meaning
to make something appear larger; to increase the importance or effect of something
Example
The microscope can magnify tiny objects for better observation.
El microscopio puede magnificar objetos pequeños para mejor observación.
C1 noun ˈmetəl kənˌtæməˈneɪʃən

metal contamination

contaminación por metales
Meaning
The presence of toxic metals in the environment that pose health and environmental risks.
Example
Metal contamination poses severe health risks.
La contaminación por metales representa graves riesgos para la salud.
C1 noun /ˈmɛləˌdrɑːmə/

melodrama

melodrama exagerado
Meaning
A dramatic piece with exaggerated characters and exciting events intended to appeal to the emotions.
Example
The movie was criticized for its excessive melodrama.
La película fue criticada por su melodrama excesivo.
C1 adjective /ˈmaʊntɪnəs/

Mountainous

montañoso
Meaning
having many mountains; characterized by mountains
Example
The mountainous region was difficult to travel through.
La región montañosa era difícil de recorrer.
C1 noun /mɔːrˈfɑːlədʒi/

morphology

morfología
Meaning
the study of the form and structure of things, especially in language and biology
Example
Morphology studies the structure of words and how they are formed.
La morfología estudia la estructura de las palabras y cómo se forman.
C1 noun /ˈmɔːrtər/

mortar

mezcla para juntar ladrillos / pequeño cañón
Meaning
a mixture used in building to bond bricks or stones together; also, a small cannon for firing shells
Example
The workers applied mortar between the bricks.
Los trabajadores aplicaron mortero entre los ladrillos.
C1 noun ˌmɪsˈmænɪdʒmənt

mismanagement

mala gestión
Meaning
Bad or careless management of something.
Example
Mismanagement of plastic waste worsens pollution.
La mala gestión de los desechos plásticos empeora la contaminación.
C1 adjective /ˈmɜːki/

murky

turbio
Meaning
Dark, gloomy, and difficult to see through; obscure.
Example
We avoided swimming in the murky river.
Evitamos nadar en el río turbio.
C1 verb /məˈtɪərɪəlaɪz/

materialize

materializarse
Meaning
To become real or actual; to appear suddenly or in a physical form.
Example
The opportunity he had been waiting for finally materialized.
La oportunidad que había estado esperando finalmente se materializó.
C1 adverb /ˌmæθəˈmætɪkli/

mathematically

matemáticamente
Meaning
in a way that relates to mathematics; using numbers, formulas, or logical calculation
Example
The problem can be solved mathematically rather than by guesswork.
El problema puede resolverse matemáticamente en lugar de adivinar.
C1 noun /moʊl/

Mole

topo
Meaning
a small burrowing mammal with tiny eyes and soft fur
Example
The mole dug tunnels under the garden.
El topo excavó túneles bajo el jardín.
C1 noun /ˈmenəs/

Menace

amenaza
Meaning
A person or thing that is likely to cause harm; a threat
Example
The reckless driver was a menace to everyone on the road.
El conductor imprudente era una amenaza para todos en la carretera.
C1 adjective ˌmiː.ti.ər.əˈlɒdʒ.ɪ.kəl

meteorological

meteorológico
Meaning
Relating to weather conditions and atmospheric phenomena.
Example
Meteorological conditions affect farming cycles.
Las condiciones meteorológicas afectan los ciclos de cultivo.
C1 noun /mɑːrˈsuːpiəl/

marsupial

mamífero que lleva y alimenta a sus crías en una bolsa
Meaning
A type of mammal that carries and nourishes its young in a pouch, like kangaroos and koalas.
Example
The kangaroo is a well-known marsupial.
El canguro es un marsúpial bien conocido.
C1 noun /məˈnɒɡəmi/

monogamy

monogamia
Meaning
The practice of being married to or in a relationship with only one person at a time.
Example
Many cultures encourage monogamy as the ideal form of marriage.
Muchas culturas fomentan la monogamia como la forma ideal de matrimonio.
C1 adjective /ˌmet.əˈbɒl.ɪk/

metabolic

metabólico
Meaning
Relating to the chemical processes that occur within a living organism in order to maintain life.
Example
Regular exercise enhances metabolic efficiency.
El ejercicio regular mejora la eficiencia metabólica.
C1 noun /ˌmæn.ɪ.fɛsˈteɪ.ʃən/

manifestation

manifestación
Meaning
A visible form or expression of an idea, concept, or feeling; the action of displaying or showing.
Example
His generosity was a manifestation of his kind nature.
Su generosidad fue una manifestación de su naturaleza amable.
C1 adjective /ˈmæliəbl̩/

malleable

fácil de moldear
Meaning
Easily shaped or influenced; capable of being bent or adapted.
Example
Gold is a highly malleable metal used in jewelry.
El oro es un metal muy maleable utilizado en joyería.
C1 noun /mɪˈrɑːʒ/

Mirage

espejismo
Meaning
An optical illusion caused by atmospheric conditions, especially in deserts
Example
The travelers saw a mirage of water in the desert.
Los viajeros vieron un espejismo de agua en el desierto.
C1 verb, noun /miˈændər/

meander

deambular
Meaning
to wander aimlessly or follow a winding course
Example
We meandered through the old streets of the city.
Deambulamos por las antiguas calles de la ciudad.
C1 noun /ˈmɒnəlɪθ/

monolith

monolito
Meaning
A large single upright block of stone, or a large, powerful, indivisible organization or system.
Example
The ancient monolith stood in the desert for centuries.
El antiguo monolito estuvo de pie en el desierto durante siglos.
C1 adjective, verb (past tense/participle of mire) /ˈmaɪərd/

mired

atrapado
Meaning
Trapped or entangled in something, typically a difficult situation.
Example
The politician was mired in scandal.
El político estaba atrapado en un escándalo.
C1 adjective /ˈmɒdʒʊlər/

modular

modular
Meaning
Employing or involving a module or modules as the basis of design or construction.
Example
The modular design allows for easy customization and scalability.
El diseño modular permite una fácil personalización y escalabilidad.
C1 adjective /mjuːˈnɪsɪpəl/

municipal

municipal
Meaning
relating to a city or town or its local government
Example
The municipal authority is responsible for maintaining the park.
La autoridad municipal es responsable de mantener el parque.
C1 noun /məˈleɪz/

malaise

malestar
Meaning
a general feeling of discomfort, illness, or unease whose exact cause is difficult to identify
Example
After the long journey, she felt a general malaise.
Después del largo viaje, ella sintió un malestar general.
C1 noun /maɪm/

Mime

mimo; actor de mimo
Meaning
A performer who acts without words, using only gestures and body movements
Example
The street mime entertained the crowd with his invisible box routine.
El mimo callejero entretuvo a la multitud con su rutina de caja invisible.
C1 adjective /ˈmɜː.sɪ.fəl/

Merciful

misericordioso; compasivo
Meaning
showing compassion or forgiveness; kind and forgiving
Example
The merciful judge gave him a lighter sentence.
El juez misericordioso le dio una sentencia más leve.
C1 verb /ˌmɪsˈmænɪdʒ/

mismanage

gestionar mal
Meaning
to handle or control something badly or inefficiently
Example
The company went bankrupt because it was mismanaged for years.
La empresa quebró porque estuvo mal gestionada durante años.
C1 adjective /ˈmɜː(r)dərəs/

Murderous

asesino; con intención de matar; extremadamente violento; sanguinario
Meaning
having the intent to kill; extremely violent; bloodthirsty
Example
The murderous look in his eyes frightened everyone.
La mirada asesina en sus ojos asustó a todos.
C1 adjective /ˈmel.əʊ/

Mellow

suave y agradable; relajado y gentil
Meaning
soft and pleasant; relaxed and gentle
Example
The mellow evening light created a peaceful atmosphere.
La suave luz de la tarde creó una atmósfera tranquila.