Mackerel
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C1 noun /ˈmæk.ər.əl/

Mackerel

caballa
Meaning
a streamlined marine fish with a forked tail and wavy stripes
Example
Mackerel is rich in omega-3 fatty acids.
La caballa es rica en ácidos grasos omega-3.
C1 noun /ˈmænər/

manor

mansión
Meaning
A large country house with lands; the main house of an estate.
Example
The old manor stood proudly on the hill for centuries.
La vieja mansión se erguía orgullosa sobre la colina durante siglos.
C1 noun /ˈmɔːr.nər/

Mourner

persona que asiste a un funeral
Meaning
a person who attends a funeral or shows grief for someone who has died
Example
The mourners gathered at the cemetery to pay their respects.
Los dolientes se reunieron en el cementerio para rendir sus respetos.
C1 adverb /maɪˈnjuːtli/

Minutely

minuciosamente
Meaning
in very small detail; extremely carefully
Example
The detective examined the evidence minutely.
El detective examinó la evidencia minuciosamente.
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 /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 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 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 noun /ˈmɪmɪkri/

mimicry

imitación
Meaning
The act of imitating someone or something, often for humor or learning.
Example
The comedian’s mimicry of celebrities made the audience laugh.
La imitación de las celebridades por el comediante hizo reír a la audiencia.
C1 noun/adjective /ˈmɪstɪk/

mystic

místico, buscador espiritual
Meaning
relating to mysteries, spirituality, or hidden truths; a person who seeks spiritual insight
Example
The mystic devoted his life to meditation and spiritual discovery.
El místico dedicó su vida a la meditación y al descubrimiento espiritual.
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 /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 /ˌmɪsˈtrʌst/

Mistrust

desconfianza
Meaning
Lack of trust; suspicion or doubt about someone or something
Example
There was deep mistrust between the two political parties.
Hubo una profunda desconfianza entre los dos partidos políticos.
C1 noun /ˈmaʊθ.fʊl/

mouthful

bocado
Meaning
the amount of food or drink that fills the mouth, or a long and difficult word or phrase
Example
He took a big mouthful of water after the run.
Él tomó un gran bocado de agua después de la carrera.
C1 noun ˈmaɪ.krəʊˌnjuː.tri.ənt

micronutrient

micronutriente
Meaning
Essential nutrients required by the body in small amounts, including vitamins and minerals.
Example
Iron and zinc are essential micronutrients for growth.
El hierro y el zinc son micronutrientes esenciales para el crecimiento.
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/adjective /ˈmæm.əθ/

mammoth

mamut / gigante
Meaning
An extinct large elephant-like animal with long curved tusks; also means something huge.
Example
The company faced a mammoth challenge during expansion.
La empresa enfrentó un desafío gigante durante la expansión.
C1 adjective məˈdʒes.tɪk

Majestic

majestuoso
Meaning
Having impressive beauty, dignity, or grandeur; regal and stately in appearance.
Example
The majestic Himalayas stand tall against the sky.
Las majestuosas montañas del Himalaya se levantan alto contra el cielo.
C1 noun /məˈnɒtəni/

monotony

monotonía
Meaning
Lack of variety and interest; tedious repetition and routine.
Example
Breaking the monotony of everyday life can improve mental health.
Romper la monotonía de la vida diaria puede mejorar la salud mental.
C1 noun /ˌmɪsdɪˈmiːnər/

misdemeanor

delito menor
Meaning
A minor wrongdoing or criminal offense that is less serious than a felony.
Example
He was fined for a misdemeanor involving public disturbance.
Fue multado por un delito menor relacionado con disturbios públicos.
C1 verb /ˈmʌtər/

mutter

murmurar
Meaning
to speak in a low or barely audible voice, often in dissatisfaction or irritation
Example
He muttered something under his breath as he walked away.
Él murmuró algo bajo su aliento mientras se alejaba.
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 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 adjective /mɪˈrækjələs/

Miraculous

milagroso; asombroso; extraordinario
Meaning
supernatural; amazing; extraordinary
Example
Her miraculous recovery amazed all the doctors.
Su recuperación milagrosa sorprendió a todos los médicos.
C1 noun ˌmɒdɪfɪˈkeɪʃn

modification

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

Mural

mural
Meaning
a painting or artwork applied directly on a wall or ceiling
Example
The artist painted a beautiful mural on the school wall.
El artista pintó un hermoso mural en la pared de la escuela.
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 /məˈkɑː.brə/

Macabre

macabro
Meaning
disturbing because concerned with death; gruesome and horrifying
Example
The horror movie had a macabre atmosphere.
La película de terror tenía una atmósfera macabra.
C1 adjective /ˌmel.ənˈkɒl.ɪk/

Melancholic

triste y pensativo; que expresa o siente tristeza
Meaning
sad and thoughtful; feeling or expressing sadness
Example
The melancholic music made everyone feel sad.
La música melancólica hizo que todos se sintieran tristes.
C1 adjective /ˈmæn.əd/

mannered

afectado / artificial
Meaning
Having or showing a particular manner, especially an artificial or affected one.
Example
The actor’s performance was too mannered to feel natural.
La actuación del actor fue demasiado afectada para sentirse natural.
C1 noun /ˈmiːdieɪtər/

Mediator

mediador
Meaning
A person who attempts to make people involved in a conflict agree
Example
The United Nations often acts as a mediator in international disputes.
Las Naciones Unidas a menudo actúan como mediador en disputas internacionales.
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 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 /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 /ˌmɒnəˈlɪθɪk/

monolithic

monolítico
Meaning
Massive, uniform, and indivisible; resembling a large single stone or structure.
Example
The company maintained a monolithic structure resistant to change.
La compañía mantuvo una estructura monolítica resistente al cambio.
C1 noun mɪˈtɪkjʊləsnɪs

meticulousness

atención minuciosa a los detalles
Meaning
Great attention to detail; very careful and precise.
Example
His meticulousness made the project successful.
Su meticulosidad hizo que el proyecto fuera exitoso.
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 verb /ˈmɛzməˌraɪz/

mesmerize

hipnotizar
Meaning
To capture complete attention; to hypnotize or fascinate.
Example
The dancer's graceful movements mesmerized the audience.
Los movimientos gráciles de la bailarina hipnotizaron a la audiencia.
C1 noun /moʊld/

Mould

molde; moho
Meaning
a hollow container used to give shape to molten material; fungus
Example
She poured chocolate into the mould to make candies.
Ella vertió chocolate en el molde para hacer caramelos.
C1 noun /ˈmɪd.əl.mæn/

Middleman

intermediario
Meaning
A person who acts as an intermediary between two parties in a business transaction
Example
They decided to cut out the middleman and sell directly to customers.
Decidieron eliminar al intermediario y vender directamente a los clientes.
C1 noun /mɪˈsɑːdʒəni/

misogyny

misoginia
Meaning
Hatred of, contempt for, or prejudice against women.
Example
The novel has been criticized for promoting misogyny.
La novela ha sido criticada por promover la misoginia.
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 noun /ˈmeɪsən/

mason

albañil
Meaning
a person skilled in building with stone, brick, or concrete
Example
The mason carefully laid the bricks for the new house.
El albañil colocó cuidadosamente los ladrillos para la nueva casa.
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 /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 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 noun /ˈmeɪ.trɪks/

matrix

matriz, estructura
Meaning
An environment or structure in which something develops; also a mathematical array of numbers.
Example
The cultural matrix shaped his worldview.
La matriz cultural moldeó su visión del mundo.
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.
C1 noun /ˈmoʊ.tər ˈlɔː.ri/

Motor lorry

camión motorizado
Meaning
a large motor vehicle used for transporting goods; truck
Example
The motor lorry delivered fresh vegetables to the market.
El camión motorizado entregó verduras frescas al mercado.
C1 verb /ˌmɪsˈriːd/

misread

leer mal
Meaning
to read something incorrectly or interpret wrongly
Example
He misread the instructions and built the shelf incorrectly.
Él leyó mal las instrucciones y construyó la estantería incorrectamente.
C1 verb /ˈmɜːrmər/

murmur

murmurar
Meaning
To say something in a low, soft, or indistinct voice.
Example
She murmured a prayer before going to sleep.
Ella murmuró una oración antes de dormir.
C1 adjective /məˈroʊs/

morose

melancólico
Meaning
sullen, gloomy, or ill-tempered
Example
He became morose after losing his job.
Se volvió melancólico después de perder su trabajo.
C1 noun /ˈmæl.ɪt/

Mallet

mazo
Meaning
a hammer with a large head, typically made of wood
Example
The carpenter used a rubber mallet to avoid damaging the wood.
El carpintero usó un martillo de goma para evitar dañar la madera.
C1 verb /məˈruːn/

maroon

abandonar en una isla desierta
Meaning
to leave someone trapped and isolated, especially on an island
Example
The sailors were marooned on a deserted island.
Los marineros fueron abandonados en una isla desierta.
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 adjective /ˈmɑːrʃəl/

martial

bélico
Meaning
Related to war, soldiers, or military life.
Example
The country imposed martial law during the crisis.
El país impuso la ley marcial durante la crisis.
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 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 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 /ˈmævərɪk/

maverick

persona independiente
Meaning
An unorthodox or independent-minded person.
Example
The maverick scientist challenged established theories.
El científico independiente desafió las teorías establecidas.
C1 noun /ˈmɪs.hæp/

Mishap

accidente; percance; desastre
Meaning
An unlucky accident or unfortunate event, typically minor
Example
The cooking mishap resulted in a burnt dinner.
El percance en la cocina resultó en una cena quemada.
C1 noun /ˈmæn.juˌskrɪpt/

manuscript

manuscrito
Meaning
a handwritten or typed document, especially a writer’s draft before publication
Example
The author submitted her manuscript to the publisher.
La autora presentó su manuscrito al editor.
C1 noun /mɑːrʃ/

Marsh

pantano
Meaning
An area of low-lying land that is flooded in wet seasons or at high tide
Example
The endangered birds built their nests in the protected marsh.
Las aves en peligro de extinción construyeron sus nidos en el pantano protegido.
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 /ˌmer.ɪˈtɔː.ri.əs/

Meritorious

meritorio
Meaning
deserving reward or praise; commendable; worthy of recognition
Example
His meritorious service to the community was recognized.
Su servicio meritorio a la comunidad fue reconocido.
C1 adjective /ˈmaɪ.ɡrə.tɔːr.i/

Migratory

migratorio
Meaning
moving from one place to another; characterized by seasonal movement
Example
Many birds are migratory and travel thousands of miles each season.
Muchos pájaros son migratorios y viajan miles de millas cada temporada.
C1 verb /mɔːl/

maul

mutilar
Meaning
To wound or injure someone by scratching or tearing; to handle roughly.
Example
The bear mauled the camper in the forest.
El oso mutiló al campista en el bosque.
C1 adjective /ˌmed.iˈiː.vəl/

Mediaeval

medieval
Meaning
relating to the Middle Ages; medieval
Example
The castle displayed mediaeval architecture and design.
El castillo mostraba arquitectura y diseño medieval.
C1 noun /ˈmoʊldɪŋ/

molding

moldura decorativa
Meaning
A decorative strip or design, often used on walls, ceilings, or furniture.
Example
The wooden molding gave the room a classic look.
El moldaje de madera le dio a la habitación un aspecto clásico.
C1 noun məˈnɒp.əl.i

monopoly

monopolio
Meaning
The exclusive possession or control of the supply of or trade in a commodity or service.
Example
The company has a monopoly on electric car production.
La empresa tiene un monopolio en la producción de coches eléctricos.
C1 noun /ˌmɪsˈdiːd/

Misdeed

acción malvada; delito
Meaning
A wicked or illegal act; wrongdoing
Example
He regretted his past misdeeds and tried to make amends.
Él lamentó sus malas acciones pasadas e intentó enmendarse.
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 /ˈmiːnnəs/

Meanness

maldad; avaricia
Meaning
The quality of being unkind, spiteful, or unfair; stinginess
Example
His meanness towards the poor children shocked everyone in the neighborhood.
Su maldad hacia los niños pobres sorprendió a todos en el vecindario.
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 /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 noun /moʊt/

moat

foso
Meaning
A deep, wide ditch surrounding a castle or town, often filled with water, for defense.
Example
The castle was protected by a wide moat filled with water.
El castillo estaba protegido por un amplio foso lleno de agua.
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 verb /mɔːrf/

morph

transformarse
Meaning
to change smoothly from one form, shape, or character into another
Example
The caterpillar will morph into a butterfly.
La oruga se transformará en una mariposa.
C1 adjective /ˈmɒsi/

Mossy

cubierto de musgo; con musgo creciendo en él
Meaning
covered with moss; having moss growing on it
Example
The old tree trunk was mossy and covered with green vegetation.
El tronco viejo del árbol estaba cubierto de musgo y cubierto de vegetación verde.
C1 noun /ˈmaɪlɪdʒ/

mileage

rendimiento de combustible
Meaning
The distance traveled in miles, or the fuel efficiency of a vehicle.
Example
This car gives excellent mileage on highways.
Este coche da un excelente rendimiento de combustible en las autopistas.
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 /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 verb /ˈmɒd.jʊ.leɪt/

modulate

modular
Meaning
To change the strength, tone, or pitch of something; to adjust or regulate.
Example
A good speaker knows how to modulate their voice.
Un buen orador sabe cómo modular su voz.
C1 noun /mɪˈtrɒp.ə.lɪs/

Metropolis

metrópoli
Meaning
A very large city, especially the main city of a country or region
Example
New York is a bustling metropolis with millions of residents.
Nueva York es una metrópoli bulliciosa con millones de residentes.
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 adjective /ˌmɛtəˈfɔːrɪkəl/

metaphorical

metafórico
Meaning
Characteristic of or relating to metaphor; figurative rather than literal.
Example
He used metaphorical language to describe his emotions.
Él usó un lenguaje metafórico para describir sus emociones.
C1 noun /ˈmɛm.breɪn/

membrane

membrana
Meaning
A thin layer of tissue or material that covers, separates, or connects structures.
Example
The cell membrane controls the movement of substances in and out of the cell.
La membrana celular controla el movimiento de las sustancias dentro y fuera de la célula.
C1 verb, noun /mɛʃ/

mesh

malla, entrelazar
Meaning
To fit or work together properly; or a material made of interlaced threads.
Example
The two gears mesh perfectly to keep the machine running smoothly.
Los dos engranajes encajan perfectamente para mantener la máquina funcionando sin problemas.
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 noun /ˈmɔːr.ɡɪʤ/

Mortgage

hipoteca
Meaning
a legal agreement by which a bank lends money to buy property
Example
They took out a mortgage to buy their first house.
Tomaron una hipoteca para comprar su primera casa.
C1 adjective məˈθɒd.ɪ.kəl

methodical

metódico
Meaning
Done according to a systematic or established procedure; orderly and systematic.
Example
His methodical research produced reliable results.
Su investigación metódica produjo resultados confiables.
C1 noun /mɪˈlɛniəm/

millennium

milenio
Meaning
a period of one thousand years; often used to mark an anniversary
Example
The year 2000 was celebrated as the beginning of a new millennium.
El año 2000 se celebró como el comienzo de un nuevo milenio.
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 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 /ˈmɪnəskjuːl/

minuscule

minúsculo
Meaning
extremely small in size or importance
Example
She made only a minuscule contribution to the project.
Ella hizo solo una contribución minúscula al proyecto.
C1 verb /ˈmjuːteɪt/

mutate

mutar
Meaning
To change or cause to change in form, nature, or character.
Example
The virus can mutate into a more dangerous strain.
El virus puede mutar a una cepa más peligrosa.
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 /ˈmælədi/

Malady

enfermedad; malestar; dolencia
Meaning
A disease or ailment; a serious problem
Example
The doctor diagnosed a rare malady that affected her nervous system.
El doctor diagnosticó una enfermedad rara que afectó su sistema nervioso.
C1 adjective, verb /muːt/

moot

irrelevante / debatible
Meaning
Adjective: subject to debate or irrelevant. Verb: to suggest an idea for discussion.
Example
The issue of funding became a moot point after the project was canceled.
El tema de la financiación se convirtió en un punto irrelevante después de que el proyecto fuera cancelado.
C1 noun /ˈmæksɪm/

maxim

máxima
Meaning
a short, well-known statement expressing a general truth or rule of conduct
Example
Honesty is a timeless maxim valued in every culture.
La honestidad es una máxima atemporal valorada en todas las culturas.
C1 noun ˌmɪs.kənˈsɛp.ʃən

misconception

idea equivocada
Meaning
A wrong idea or false understanding about something.
Example
There is a common misconception that success happens overnight.
Hay una idea errónea común de que el éxito ocurre de la noche a la mañana.
C1 noun /ˈmɑː.kɪt ˌpen.ɪˈtreɪ.ʃən/

Market Penetration

penetración de mercado
Meaning
A measure of the amount of sales or adoption of a product or service compared to the total theoretical market for that product or service.
Example
High market penetration ensures competitive dominance.
Una alta penetración de mercado asegura dominancia competitiva.
C1 noun /ˈmʌf.lər/

Muffler

bufanda
Meaning
a long strip of cloth worn around the neck for warmth
Example
She wrapped a warm muffler around her neck before going outside.
Ella envolvió una bufanda cálida alrededor de su cuello antes de salir.
C1 adjective ˌmæk.roʊ.iː.kəˈnɒm.ɪk

macroeconomic

macroeconómico
Meaning
Relating to the large-scale or general economic factors, such as interest rates and national productivity.
Example
Government policies impact macroeconomic stability.
Las políticas gubernamentales impactan la estabilidad macroeconómica.
C1 noun /ˈmedoʊ/

Meadow

pradera
Meaning
A piece of grassland, especially one used for hay
Example
The cows grazed peacefully in the green meadow.
Las vacas pastaban tranquilamente en la pradera verde.
C1 noun /mɔːs/

Moss

musgo
Meaning
a small flowerless plant that grows in clumps in moist places
Example
Green moss covered the old stone wall.
El musgo verde cubrió la antigua pared de piedra.
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 verb, noun /mʊər/

moor

atar / terreno baldío
Meaning
As a verb: to tie a ship so that it stays in place. As a noun: open, uncultivated land.
Example
The sailors moored the ship at the dock.
Los marineros amarraron el barco en el muelle.
C1 noun ˈmaɪ.krəʊˌnjuː.tri.ənts

micronutrients

micronutrientes
Meaning
Essential nutrients required by organisms in small quantities throughout life to orchestrate a range of physiological functions.
Example
Micronutrients are essential for cellular function.
Los micronutrientes son esenciales para la función celular.
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 noun /ˈmæɡneɪt/

Magnate

magnate; persona poderosa y rica en el negocio
Meaning
A wealthy and powerful businessperson or industrialist
Example
The oil magnate owned dozens of refineries across the country.
El magnate del petróleo poseía docenas de refinerías en todo el país.
C1 verb /ˈmɛdəl/

meddle

interferir en algo que no te concierne
Meaning
to interfere in something that is not one's concern
Example
He always tries to meddle in other people’s business.
Él siempre intenta interferir en los asuntos de los demás.
C1 verb /mæʃ/

mash

machacar
Meaning
to crush or mix food into a soft mass, usually by pressing or beating
Example
She mashed the potatoes before serving dinner.
ella machó las papas antes de servir la cena.
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 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 verb /mɑːrd/

marred

estropear
Meaning
to spoil or damage the quality or appearance of something
Example
The celebration was marred by bad weather.
La celebración fue arruinada por mal tiempo.
C1 adjective /ˈmaɪzərli/

miserly

tacaño
Meaning
Unwilling to spend money; stingy.
Example
She lived a miserly life, refusing to buy anything new.
Vivió una vida tacaña, negándose a comprar algo nuevo.
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 ˌmɛməraɪˈzeɪʃən

memorization

memorización
Meaning
The process of learning or committing something to memory
Example
Memorization of important information is crucial for exams.
La memorización de información importante es crucial para los exámenes.
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 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.