must
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A1 verb /mʌst/

must

deber
Meaning
to be required or obligated to
Example
You must complete your homework before you go out.
Debes completar tu tarea antes de salir.
B2 noun /məˈtʃʊrəti/

Maturity

madurez
Meaning
The state of being mature; full development physically or emotionally
Example
With age comes wisdom and emotional maturity.
Con la edad llega la sabiduría y la madurez emocional.
C1 noun /moʊˈzeɪɪk/

mosaic

mosaico
Meaning
A picture or pattern produced by arranging together small pieces of stone, tile, or glass.
Example
The church ceiling was decorated with a beautiful mosaic.
El techo de la iglesia estaba decorado con un hermoso mosaico.
B1 noun /mæs/

mass

masa
Meaning
a large body of matter with no specific shape; a large number of people or things
Example
A huge mass of people gathered in the square.
Una enorme masa de personas se reunió en la plaza.
C1 noun /ˈmoʊɡəl/

mogul

magnate
Meaning
A powerful or influential person, especially in business or media.
Example
He became a tech mogul by founding a billion-dollar company.
Se convirtió en un magnate de la tecnología al fundar una empresa multimillonaria.
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.
C2 noun /ˈmɛtrəˌnoʊm/

metronome

metrónomo
Meaning
A device that produces regular ticks or beats to help musicians maintain tempo.
Example
She practiced the piano with a metronome to keep steady timing.
Ella practicaba el piano con un metrónomo para mantener el ritmo constante.
B2 noun /mɪkst ˈkʌlər/

Mixed colour

color mezclado
Meaning
a color created by combining two or more different colors
Example
The mixed colour created a beautiful gradient on the canvas.
El color mezclado creó un hermoso gradiente en el lienzo.
C2 noun /ˌmælˈoʊdər/

malodor

mal olor
Meaning
An unpleasant smell; bad odor.
Example
The garbage bin gave off a terrible malodor.
El cubo de basura emitió un terrible mal olor.
B2 noun /meɪz/

Maize

maíz
Meaning
a tall cereal plant bearing large grains on a cob; corn
Example
Farmers in the region grow maize as their primary crop for both food and animal feed.
Los agricultores en la región cultivan maíz como su principal cultivo tanto para alimentos como para piensos para animales.
C2 adjective /ˈmʌski/

musky

almizclado
Meaning
having a strong, sweet, earthy smell like musk
Example
The perfume had a musky fragrance.
El perfume tenía una fragancia almizclada.
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.
A2 noun /mɪˈsteɪk/

Mistake

error; equivocación;
Meaning
An action or judgment that is misguided or wrong; an error
Example
Making mistakes is part of the learning process.
Cometer errores es parte del proceso de aprendizaje.
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.
C2 verb /miːt/

mete

distribuir
Meaning
To dispense or allot justice, punishment, or harsh treatment.
Example
The judge will mete out punishment according to the crime.
El juez distribuirá el castigo según el crimen.
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.
B1 noun /məˈtɪəriəl/

Material

material; tela; sustancia
Meaning
The matter from which a thing is or can be made; fabric or cloth
Example
The building was constructed using the finest materials available.
El edificio fue construido utilizando los mejores materiales disponibles.
B2 noun /mɑːrz/

Mars

Marte
Meaning
The fourth planet from the Sun; the Roman god of war
Example
Scientists are planning a manned mission to Mars in the next decade.
Los científicos están planeando una misión tripulada a Marte en la próxima década.
A1 modal verb, noun /meɪ/

may

puede ser / mes de mayo
Meaning
Used to express possibility, permission, or uncertainty; also the name of the fifth month of the year.
Example
You may leave early if you finish your work.
Puedes irte temprano si terminas tu trabajo.
C1 noun /ˈmjuːtɪni/

mutiny

motín
Meaning
an open rebellion against authority, especially by soldiers or sailors
Example
The sailors staged a mutiny against their captain.
Los marineros organizaron un motín contra su capitán.
C2 noun /ˌmjuːtəˈbɪləti/

mutablility

mutabilidad (mala ortografía)
Meaning
A misspelled form of 'mutability', meaning the quality of being changeable.
Example
The document contained the misspelled word 'mutablility' instead of 'mutability'.
El documento contenía la palabra mal escrita 'mutablility' en lugar de 'mutability'.
B1 noun /ˈmæɡnət/

magnet

imán
Meaning
An object that produces a magnetic field and attracts metals like iron.
Example
The magnet held the paper to the fridge door.
El imán sujetó el papel a la puerta del refrigerador.
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 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 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.
B2 noun /maɪˈnɔːr.ɪ.ti/

minority

minoría
Meaning
A smaller number or part, especially a group differing from the majority.
Example
The law aims to protect the rights of ethnic minorities.
La ley tiene como objetivo proteger los derechos de las minorías étnicas.
A2 verb /ˈmɑːrkɪt/

market

comercializar
Meaning
to promote and sell products or services; to advertise
Example
The company will market their new product through social media.
La compañía comercializará su nuevo producto a través de redes sociales.
A1 verb /miːt/

meet

encontrarse
Meaning
to come into the presence of; to encounter
Example
I will meet you at the café.
Te veré en el café.
B2 noun /ˈmɑːr.tɪn/

Martin

martinete
Meaning
small swift-flying bird that catches insects on the wing
Example
The martin built its nest under the bridge.
El martinete construyó su nido debajo del puente.
B2 noun /ˌmænjəˈfæktʃərɪŋ/

manufacturing

fabricación
Meaning
the process of making products on a large scale using machinery
Example
The country is investing heavily in the manufacturing sector.
El país está invirtiendo fuertemente en el sector de la fabricación.
C1 adverb /ˈmerɪli/

Merrily

alegremente
Meaning
in a cheerful and joyful manner
Example
The children played merrily in the garden.
Los niños jugaban alegremente en el jardín.
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.
B2 noun /ˈmeɪər/

mayor

alcalde
Meaning
The elected head of a city, town, or municipality.
Example
The mayor announced a new policy to improve public transport.
El alcalde anunció una nueva política para mejorar el transporte público.
B2 noun ˈmɪdl klæs

middle-class

clase media
Meaning
The social group between the upper and working classes, typically consisting of well-educated people.
Example
The middle-class was largely affected by the decision.
La clase media fue ampliamente afectada por la decisión.
A2 verb /ˈmænɪdʒ/

manage

manejar
Meaning
to control or organize something; to succeed in doing something difficult
Example
He manages a team of twenty employees effectively.
Él maneja un equipo de veinte empleados de manera efectiva.
C1 noun /ˌmiːdɪˈeɪʃən/

mediation

mediación
Meaning
Intervention between parties to promote reconciliation, settlement, or compromise.
Example
The mediation helped resolve the conflict between the two teams.
La mediación ayudó a resolver el conflicto entre los dos equipos.
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 /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.
B2 verb /mɜːrdʒ/

merge

fusionar
Meaning
to combine or join together; to blend into one
Example
The two companies decided to merge to increase their market share.
Las dos compañías decidieron fusionarse para aumentar su participación en el mercado.
B2 adverb /ˈmæn.ju.ə.li/

Manually

a mano; mediante esfuerzo físico;
Meaning
by hand; using physical effort rather than machines
Example
The data was entered manually into the system.
Los datos se introdujeron manualmente en el sistema.
A2 noun /ˈmoʊ.mənt/

Moment

momento
Meaning
a very brief period of time; an exact point in time
Example
Please wait a moment while I check your order.
Por favor espere un momento mientras verifico su pedido.
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 /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.
C2 adjective /ˈmɪn.ɪ.skjuːl/

miniscule

minúsculo
Meaning
Extremely small or tiny.
Example
The error was so miniscule that nobody noticed it.
El error era tan minúsculo que nadie lo notó.
B1 noun /ˈmɛtəl/

metal

metal
Meaning
A solid material that is typically hard, shiny, malleable, fusible, and conductive, such as iron, gold, or aluminum.
Example
The ring was made of precious metal.
El anillo estaba hecho de metal precioso.
C1 verb /ˈməʊbɪlaɪz/

mobilize

movilizar
Meaning
to organize or prepare people or resources for action
Example
The leader worked hard to mobilize the community for the protest.
El líder trabajó duro para movilizar a la comunidad para la protesta.
B1 noun /meɪt/

mate

amigo, compañero
Meaning
a friend or companion; a partner in marriage or reproduction
Example
He went fishing with his old school mate.
Fue a pescar con su viejo compañero de escuela.
C1 noun /ˈmaɪzər/

miser

miserable
Meaning
A person who hoards wealth and spends as little money as possible.
Example
The old miser refused to donate even a penny to charity.
El viejo miserable se negó a donar ni un céntimo a la caridad.
C2 noun /ˈmɪsɪv/

missive

misiva
Meaning
a written message, especially a formal or official letter
Example
He sent a long missive to the governor.
Envió una larga misiva al gobernador.
A2 noun /ˈmoʊtərˌsaɪkəl/

motorcycle

motocicleta
Meaning
a two-wheeled motor-powered vehicle designed for transportation
Example
He rides his motorcycle to work every morning.
Él va al trabajo en motocicleta todas las mañanas.
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.
C2 verb /ˈmæsəˌreɪt/

macerate

ablandar
Meaning
to soften or break up something, especially food, by soaking in liquid
Example
The chef macerated the fruit in wine before serving.
El chef maceró la fruta en vino antes de servirla.
C2 noun /ˈmɒnəkl/

monocle

monóculo
Meaning
A single round lens for one eye, used to correct or enhance vision.
Example
The old gentleman wore a monocle at formal events.
El anciano llevaba un monóculo en eventos formales.
C2 adjective /mjuːˈnɪfɪsənt/

munificent

munífico
Meaning
extremely generous; giving freely and abundantly
Example
She made a munificent donation to the orphanage.
Ella hizo una donación munífica al orfanato.
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.
B1 noun /ˌmɪl.jəˈneər/

Millionaire

millonario
Meaning
A person whose wealth equals or exceeds one million units of currency
Example
He became a millionaire through smart investments and hard work.
Se convirtió en millonario gracias a inversiones inteligentes y trabajo duro.
A2 noun /ˈmʌŋki/

Monkey

mono
Meaning
a primate mammal that typically has a long tail and lives in trees
Example
The monkey swung from branch to branch in the jungle.
El mono se colgaba de rama en rama en la selva.
A2 noun ˈmɛdɪsɪn

medicine

medicina
Meaning
A compound or preparation used for the treatment or prevention of disease.
Example
Modern medicine has made great strides in treating diseases.
La medicina moderna ha logrado grandes avances en el tratamiento de enfermedades.
C1 adjective /moʊv/

mauve

morado claro
Meaning
a pale purple color with a grayish or bluish tinge
Example
She wore a beautiful mauve dress to the party.
Ella llevaba un hermoso vestido morado claro en la fiesta.
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 noun ˌmɪt.ɪˈɡeɪ.ʃən

mitigation

mitigación
Meaning
The action of reducing the severity, seriousness, or painfulness of something.
Example
Mitigation of climate change requires collective effort.
La mitigación del cambio climático requiere un esfuerzo colectivo.
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 /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.
A1 noun ˈmuːviz

movies

películas
Meaning
A story or event recorded by a camera as a set of moving images and shown in a theater or on television.
Example
Watching movies helps in language learning.
Ver películas ayuda en el aprendizaje de idiomas.
B2 adjective /ˌmʌl.tiˈpɜː.pəs/

Multipurpose

multifuncional
Meaning
having multiple uses or functions; versatile
Example
This multipurpose tool can be used as a knife, screwdriver, and bottle opener.
Esta herramienta multifuncional se puede usar como cuchillo, destornillador y abridor de botellas.
A2 noun /ˈmɪr.ər/

Mirror

espejo
Meaning
a reflective surface that shows an image of whatever is in front of it
Example
She looked at herself in the mirror.
Ella se miró en el espejo.
B2 noun /ˈmaɪ.ɡrənt/

migrant

migrante
Meaning
A person who moves from one place to another, especially to find work or better living conditions.
Example
Many migrants travel long distances to find employment.
Muchos migrantes viajan largas distancias para encontrar empleo.
A2 adjective /ˈmɒdən/

modern

moderno
Meaning
relating to the present or recent times, not ancient or old-fashioned
Example
They live in a modern apartment with new facilities.
Viven en un apartamento moderno con nuevas instalaciones.
B2 noun /ˈmɪnərəl/

mineral

mineral
Meaning
a naturally occurring substance that is solid and inorganic, often used in industry or nutrition
Example
Calcium is an important mineral for strong bones.
El calcio es un mineral importante para los huesos fuertes.
C1 noun /ˈmɪʃ.ən.ɛr.i/

Missionary

misionero
Meaning
A person sent on a religious mission to promote their faith in a foreign country
Example
The missionary spent years teaching and helping people in remote villages.
El misionero pasó años enseñando y ayudando a la gente en aldeas remotas.
C1 noun /ˈmɪl.ɪ.tənt/

Militant

militante
Meaning
A person who uses aggressive or violent methods to promote a political or social cause
Example
The militant group demanded immediate political reforms.
El grupo militante exigió reformas políticas inmediatas.
A2 noun /miːl/

Meal

comida
Meaning
food that is prepared and eaten at a specific time
Example
We enjoyed a delicious meal at the restaurant.
Disfrutamos de una deliciosa comida en el restaurante.
C1 noun /ˌmiːtiəˈrɒlədʒi/

meteorology

meteorología
Meaning
The scientific study of the atmosphere and weather.
Example
He chose to specialize in meteorology to study weather patterns.
Eligió especializarse en meteorología para estudiar los patrones climáticos.
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.
C2 noun /miːn/

mien

aspecto
Meaning
A person's appearance or manner, especially as an indication of their character or mood.
Example
His serious mien made everyone fall silent.
Su aspecto serio hizo que todos se quedaran en silencio.
B2 noun /ˈmɪs.tʃɪf/

Mischief

travieso
Meaning
Playful behavior that causes minor trouble or annoyance but is not meant to cause serious harm
Example
The children were full of mischief during the summer holidays.
Los niños estaban llenos de travesuras durante las vacaciones de verano.
C1 noun /ˌmjuːnɪsɪˈpæləti/

municipality

municipalidad
Meaning
a city or town that has its own local government
Example
The municipality is planning to build a new library.
La municipalidad está planeando construir una nueva biblioteca.
B2 noun /ˌmɛdɪˈteɪʃən/

meditation

meditación
Meaning
The practice of focusing the mind to achieve calmness, clarity, or spiritual growth.
Example
She practices meditation every morning to start her day peacefully.
Ella practica la meditación cada mañana para comenzar su día en paz.
B2 noun /ˈmɒdəreɪtər/

moderator

moderador
Meaning
A person who leads or oversees discussions, debates, or forums to maintain order.
Example
The moderator asked each panelist to share their views.
El moderador pidió a cada panelista que compartiera sus opiniones.
B2 noun /ˈmɪn.ɪ.stri/

Ministry

ministerio
Meaning
A government department responsible for a particular area of public administration
Example
The Ministry of Education announced new policies for schools.
El Ministerio de Educación anunció nuevas políticas para las escuelas.
A2 noun ˈmuːv.mənt

movement

movimiento
Meaning
A group of people working together to advance their shared political, social, or artistic ideas.
Example
The movement aimed to ensure equal rights.
El movimiento tenía como objetivo garantizar los derechos iguales.
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.
A2 adjective ˈmed.ɪ.kəl

medical

médico
Meaning
Relating to the practice of medicine or the treatment of illness and injuries.
Example
Medical education has improved significantly.
La educación médica ha mejorado significativamente.
A1 title /mɪz/

ms

Sra.
Meaning
a title used before a woman's name, regardless of marital status
Example
Ms. Akter will give a speech at the seminar.
Ms. Akter dará un discurso en el seminario.
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.
B2 noun ˈmoʊ.baɪl sɪˈkjʊr.ə.ti

mobile security

seguridad móvil
Meaning
Protection of mobile devices and the data stored on them from security threats.
Example
Strong mobile security protects personal information.
Una fuerte seguridad móvil protege la información personal.
C2 noun /ˈmʌskɪt/

musket

un tipo de fusil antiguo
Meaning
a type of long gun used in the past, especially by infantry soldiers
Example
The soldiers carried muskets into the battlefield.
Los soldados llevaron mosquetes al campo de batalla.
A1 verb, noun /mɪs/

miss

extrañar / perderse
Meaning
to fail to hit, reach, or meet; to feel the absence of someone or something
Example
I really miss my family when I travel abroad.
Realmente echo de menos a mi familia cuando viajo al extranjero.
B2 adverb /mɪdst/

Midst

en medio de; entre
Meaning
in the middle of; among
Example
She stood in the midst of the crowd.
Ella estaba de pie en medio de la multitud.
A2 noun /ˈmɛnjuː/

menu

menú
Meaning
A list of food and drinks available at a restaurant or offered at a meal.
Example
The restaurant updated its menu with new dishes.
El restaurante actualizó su menú con nuevos platos.
C2 noun /ˈmæl.əˌfæk.tər/

malefactor

malhechor
Meaning
A person who commits a crime or does evil.
Example
The malefactor was arrested for the robbery.
El malhechor fue arrestado por el robo.
B2 noun /ˈmʌð.ər.lænd/

Motherland

madre patria; país natal
Meaning
the country where one was born or has citizenship; homeland
Example
He always spoke fondly of his motherland.
Él siempre hablaba cariñosamente de su madre patria.
C2 adjective /ˈmɒtli/

motley

heterogéneo
Meaning
Made up of different, often incongruous or diverse elements.
Example
The festival attracted a motley crowd of artists, musicians, and tourists.
El festival atrajo una multitud heterogénea de artistas, músicos y turistas.
C1 noun /meər/

Mare

yegua
Meaning
an adult female horse
Example
The beautiful mare galloped across the meadow.
La hermosa yegua galopó por el prado.
C2 adjective /ˌmɛrəˈtrɪʃəs/

meretricious

ficticio
Meaning
apparently attractive but having no real value or integrity.
Example
The design was flashy but meretricious.
El diseño era llamativo pero ficticio.
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/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.
B2 noun ˈmɑːr.kɪt ɪˈkɒn.ə.mi

market economy

economía de mercado
Meaning
An economic system where production and pricing decisions are controlled by individuals and based on supply and demand.
Example
A market economy allows businesses to compete freely.
Una economía de mercado permite a las empresas competir libremente.
A1 adjective, adverb, pronoun /mʌtʃ/

much

mucho
Meaning
a large amount or degree of something
Example
She doesn’t have much time to finish the project.
Ella no tiene mucho tiempo para terminar el proyecto.
C2 noun /ˌmɪstɪfɪˈkeɪʃən/

mystification

misterio, desconcierto
Meaning
the act of making something unclear or confusing; a state of being puzzled or bewildered
Example
The audience watched in mystification as the magician performed his tricks.
La audiencia miró con desconcierto mientras el mago realizaba sus trucos.
B2 noun /məˈstɑːʃ/

Moustache

bigote
Meaning
hair that grows on the upper lip of men
Example
He grew a thick moustache for the play.
Él cultivó un espeso bigote para la obra.
C2 noun /ˈmeɪvən/

maven

experto
Meaning
an expert or connoisseur in a particular field
Example
He is a tech maven who always knows the latest trends.
Él es un experto en tecnología que siempre sabe las últimas tendencias.
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 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.
C2 noun /mɪf/

miff

pequeña pelea
Meaning
A petty quarrel or annoyance.
Example
They had a slight miff over the seating arrangement.
Tuvieron una pequeña pelea sobre la disposición de los asientos.
C2 noun /ˈmædrɪɡəl/

madrigal

madrigal
Meaning
A short, lyrical poem set to music, typically from the Renaissance period.
Example
The choir performed a beautiful madrigal from the 16th century.
El coro interpretó un hermoso madrigal del siglo XVI.
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 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.
C2 verb /ˈmɔːrtɪfaɪ/

mortify

mortificar
Meaning
to cause someone to feel great embarrassment or shame
Example
She was mortified when she tripped on stage.
Ella estaba mortificada cuando tropezó en el escenario.
C1 verb /ˈmʌmbəl/

mumble

murmurar
Meaning
To speak quietly and not clearly so that words are difficult to understand.
Example
He mumbled an apology before leaving.
Él murmuró una disculpa antes de irse.
B1 noun /ˈmeʒərmənt/

measurement

medición
Meaning
the size, length, or amount of something, as determined by measuring
Example
The tailor took my waist measurement before stitching the suit.
El sastre tomó la medida de mi cintura antes de coser el traje.
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.
C2 noun/verb /ˈmæn.ə.kəl/

manacle

grillete
Meaning
A metal shackle for fastening someone's hands or ankles; also to restrain with such shackles.
Example
The prisoner was manacled before being taken to court.
El prisionero fue maniatado antes de ser llevado al tribunal.
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.
B2 noun /mɪθ/

myth

mito
Meaning
A traditional story explaining natural or social phenomena, often involving supernatural beings; a widely held but false belief.
Example
The myth of the phoenix tells of a bird reborn from its ashes.
El mito del fénix cuenta la historia de un pájaro renacido de sus cenizas.
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.
B2 noun /mʌŋk/

Monk

monje
Meaning
a man who is a member of a religious community living under vows
Example
The monk spent hours in meditation each day.
El monje pasó horas en meditación cada día.
C2 noun /ˈmɒkəsɪn/

moccasin

mocasín
Meaning
A soft leather shoe, traditionally worn by Native Americans, often made from deerskin.
Example
He slipped on a pair of comfortable moccasins before going outside.
Se puso unos cómodos mocasines antes de salir.
C2 adjective /məˈlɪfluəs/

mellifluous

melodioso
Meaning
Sweet or musical; pleasant to hear.
Example
The singer’s mellifluous voice enchanted the audience.
La voz melodiosa del cantante encantó a la audiencia.
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 /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.