assertion
All a b c d e f g h i j k l m n o p q r s t u v w x y z
All CEFR A1 A2 B1 B2 C1 C2
Content locale
EN English BN Bengali HI Hindi ES Español FR Francés DE Alemán RU Ruso ZH Chino JA Japonés
All Vocabulary Cards All Vocabularies
B2 noun /əˈsɜːʃən/

assertion

afirmación
Meaning
a confident and forceful statement of fact or belief
Example
Her assertion that she was right was met with silence.
Su afirmación de que tenía razón fue recibida con silencio.
B2 noun rɪˈzentmənt

resentment

resentimiento
Meaning
Bitter indignation at having been treated unfairly.
Example
Resentment grew among the students.
El resentimiento creció entre los estudiantes.
C1 verb /ˈskʌr.i/

scurry

correr rápidamente
Meaning
To move quickly with short, hurried steps.
Example
The mice scurried across the kitchen floor when the lights turned on.
Los ratones corrieron rápidamente por el suelo de la cocina cuando las luces se encendieron.
C1 noun /daɪˈvɜː.ʃən/

Diversion

desviación
Meaning
the action of turning something aside from its course; an activity that diverts the mind
Example
The road closure forced a diversion through the countryside for all travelers.
El cierre de la carretera obligó a una desviación a través del campo para todos los viajeros.
C1 verb /ˈfʌmbəl/

fumble

torpeza
Meaning
to handle something clumsily or to make mistakes while doing something
Example
He fumbled with the keys and dropped them on the floor.
Él torpedeó con las llaves y las dejó caer al suelo.
C2 noun /ˈhelmz.mən/

Helmsman

timón; patrón de barco
Meaning
a person who steers a ship or boat; the person at the helm of a vessel
Example
The experienced helmsman skillfully guided the yacht through the narrow channel during the storm.
El experimentado timonel guió hábilmente el yate a través del estrecho canal durante la tormenta.
B2 noun ˌkɒm.prɪˈhɛn.ʃən

comprehension

comprensión
Meaning
The ability to understand something; understanding or grasp of knowledge.
Example
Reading improves vocabulary and comprehension skills.
La lectura mejora el vocabulario y las habilidades de comprensión.
B2 noun/adjective /ˈbʌmpər/

bumper

parachoques
Meaning
A protective bar at the front or back of a vehicle; also used to describe something unusually large or successful.
Example
The farmer celebrated a bumper harvest this year.
El agricultor celebró una cosecha récord este año.
B2 adjective /bɪˈkʌmɪŋ/

becoming

apropiado
Meaning
attractive, suitable, or flattering to the wearer or situation
Example
That dress is very becoming on her.
Ese vestido le queda muy bien.
C1 adjective /ɛnˌsaɪkləˈpiːdɪk/

encyclopedic

enciclopédico
Meaning
Having comprehensive knowledge of many subjects; relating to or characteristic of an encyclopedia.
Example
Her encyclopedic knowledge of history amazed everyone at the conference.
Su conocimiento enciclopédico de la historia sorprendió a todos en la conferencia.
C1 noun /haʊnd/

Hound

perro de caza
Meaning
a dog bred for hunting, typically having a keen sense of smell
Example
The bloodhound tracked the scent through the dense forest.
El bloodhound siguió el rastro a través del denso bosque.
C1 adjective /ˌɪndɪˈsaɪsɪv/

Indecisive

indeciso
Meaning
unable to make decisions quickly; hesitant; wavering
Example
She was indecisive about which university to attend.
Ella estaba indecisa sobre qué universidad asistir.
B1 noun /ˈbeɪsɪs/

basis

base
Meaning
the underlying support or foundation for an idea, argument, or process
Example
Trust is the basis of any strong relationship.
La confianza es la base de cualquier relación fuerte.
C1 noun /ˈpəʊstˌskrɪpt/

postscript

posdata
Meaning
an additional remark at the end of a letter or text, after the signature
Example
She added a brief postscript to thank him again.
Ella añadió una breve posdata para darle las gracias nuevamente.
A2 noun /ˈwɒlɪt/

Wallet

billetera
Meaning
a small folding case for carrying money, credit cards, and identification
Example
He pulled out his wallet to pay for the coffee.
Sacó su billetera para pagar el café.
C1 noun /ˈkætərækt/

cataract

catarata / cascada
Meaning
A medical condition causing clouding of the eye's lens; also a large waterfall.
Example
The old man suffered from cataracts in both eyes.
El hombre mayor sufría de cataratas en ambos ojos.
C2 noun /kəˈlɒsəs/

colossus

coloso
Meaning
A person or thing of enormous size, importance, or ability.
Example
Einstein was a colossus in the world of science.
Einstein fue un coloso en el mundo de la ciencia.
B2 noun /ˈten.dən.si/

Tendency

tendencia
Meaning
an inclination toward a particular characteristic or type of behavior
Example
She has a tendency to arrive late for meetings.
Ella tiene tendencia a llegar tarde a las reuniones.
B2 noun /beɪ/

Bay

bahía
Meaning
a broad inlet of the sea where the land curves inward
Example
The boats are anchored in the bay.
Los botes están anclados en la bahía.
C2 noun /ˌskʌlˈdʌɡəri/

skullduggery

engaño
Meaning
dishonest behavior or activities, often done secretly
Example
The election was full of political skullduggery.
La elección estuvo llena de engaños políticos.
C2 verb /bɪˈhuːv/

behoove

ser necesario o apropiado para alguien hacer algo
Meaning
to be necessary, proper, or appropriate for someone to do
Example
It would behoove you to study before the exam.
Sería conveniente que estudiaras antes del examen.
B1 verb /ɪmˈbærəs/

embarrass

avergonzar
Meaning
to cause someone to feel awkward, self-conscious, or ashamed
Example
His rude comment really embarrassed her in front of everyone.
Su comentario grosero realmente la avergonzó frente a todos.
C1 noun /saɪˈkoʊsɪs/

psychosis

psicosis
Meaning
A severe mental disorder in which thought and emotions are impaired, leading to a loss of contact with reality.
Example
The patient was diagnosed with psychosis after experiencing hallucinations.
El paciente fue diagnosticado con psicosis después de experimentar alucinaciones.
B2 verb /reɪd/

raid

redada
Meaning
to attack suddenly; to search and seize
Example
Police raid the illegal gambling house.
La policía realiza una redada en la casa de apuestas ilegal.
A1 verb /ˈhæpən/

happen

suceder
Meaning
to occur or take place; to come about by chance
Example
What happened at the meeting yesterday?
¿Qué sucedió en la reunión ayer?
B2 noun /ˈfæntəsi/

fantasy

fantasía
Meaning
a creation of the imagination, especially something improbable or impossible
Example
She has a vivid fantasy about traveling to space.
Ella tiene una vívida fantasía sobre viajar al espacio.
C1 adjective /ˌɛpɪˈsɒdɪk/

episodic

episódico
Meaning
Happening occasionally or in separate parts; related to episodes.
Example
Her interest in art was episodic, coming and going over the years.
Su interés por el arte era episódico, viniendo y yendo a lo largo de los años.
B1 noun /bɪˈhɑːf/

behalf

en nombre de
Meaning
as a representative of someone; in the interest of someone
Example
She accepted the award on behalf of her team.
Ella aceptó el premio en nombre de su equipo.
B2 verb /ɪnˈstrʌkt/

instruct

instruir
Meaning
to teach; to give directions
Example
The teacher instructed the students carefully.
El maestro instruyó a los estudiantes con cuidado.
C2 noun /ˈpɜːrvjuː/

purview

ámbito
Meaning
the scope or range of authority, responsibility, or knowledge
Example
The case does not fall within the purview of this court.
El caso no está dentro del ámbito de este tribunal.
C1 verb /ˈsælvɪdʒ/

salvage

salvar
Meaning
To save something from loss, damage, or destruction.
Example
They managed to salvage some goods from the fire.
Lograron salvar algunos bienes del incendio.
B2 adjective /ˈsɜːdʒɪkəl/

surgical

relacionado con cirugía
Meaning
relating to or involving surgery
Example
She underwent surgical treatment to repair the damage.
Se sometió a tratamiento quirúrgico para reparar el daño.
A1 adjective ˈdɪfɪkəlt

difficult

difícil
Meaning
Needing much effort or skill to accomplish, deal with, or understand; hard.
Example
Managing urban challenges has become increasingly difficult.
Gestionar los desafíos urbanos se ha vuelto cada vez más difícil.
B1 noun /ˈɡræn(d)ˌdɔːtər/

granddaughter

nieta
Meaning
the daughter of one’s son or daughter
Example
Her granddaughter visits her every weekend.
Su nieta la visita todos los fines de semana.
C2 noun /ɪˌnʌn.siˈeɪ.ʃən/

enunciation

enunciación, pronunciación clara
Meaning
The act of saying or pronouncing words clearly and distinctly.
Example
His enunciation was clear during the presentation.
Su enunciación fue clara durante la presentación.
A1 verb /niːd/

need

necesitar
Meaning
to require something; to be in want of
Example
I need help with my homework.
Necesito ayuda con mi tarea.
B2 verb /ˈverɪfaɪ/

verify

verificar
Meaning
to check if something is true or correct; to confirm
Example
Please verify your email address before proceeding.
Por favor, verifica tu dirección de correo electrónico antes de proceder.
C1 verb /bɪˈmoʊn/

bemoan

lamentar
Meaning
To express discontent or sorrow over something.
Example
Critics bemoaned the lack of diversity in the film.
Los críticos lamentaron la falta de diversidad en la película.
B1 noun /ˈtɔːr.təs/

tortoise

tortuga
Meaning
A slow-moving land reptile with a hard shell.
Example
The tortoise slowly crossed the garden.
La tortuga cruzó lentamente el jardín.
C1 adjective /ˌhɒməˈdʒiːniəs/

homogeneous

homogéneo, uniforme
Meaning
Of the same kind; alike.
Example
The team was not homogeneous in their skills.
El equipo no era homogéneo en sus habilidades.
B1 noun /ˈlaɪtnɪŋ/

lightning

relámpago
Meaning
a flash of light in the sky caused by electricity during a storm
Example
The lightning struck a tree near our house.
El relámpago golpeó un árbol cerca de nuestra casa.
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 /pəˈræl.ə.sɪs/

Paralysis

parálisis
Meaning
the loss of the ability to move part or all of the body; complete inability to act or function
Example
The accident left him with paralysis in his legs.
El accidente lo dejó con parálisis en las piernas.
B2 noun /kaʊtʃ/

Couch

sofá
Meaning
a long upholstered seat for more than one person, typically with a back and arms
Example
The family gathered on the couch to watch a movie.
La familia se reunió en el sofá para ver una película.
C2 noun /ɪnˈtɛmpərəns/

intemperance

intemperancia
Meaning
Lack of moderation or self-control, especially with drinking or eating.
Example
His intemperance in drinking ruined his health.
Su intemperancia al beber arruinó su salud.
C2 verb /ɪmˈbɪtər/

embitter

amargar
Meaning
To make someone resentful or angry; to cause bitterness.
Example
The unfair treatment embittered the employees.
El trato injusto amargó a los empleados.
B2 noun /ˈreɪsɪzəm/

racism

racismo
Meaning
the belief that some races are superior to others, leading to unfair treatment or prejudice
Example
The organization works to eliminate racism in all forms.
La organización trabaja para eliminar el racismo en todas sus formas.
A2 adjective /ˈmɛsi/

messy

desordenado
Meaning
untidy or dirty; disorganized or chaotic
Example
His room was so messy that he couldn’t find his keys.
Su habitación estaba tan desordenada que no pudo encontrar sus llaves.
B2 adjective /ˌɪnɪˈfɪʃənt/

Inefficient

ineficiente
Meaning
not achieving maximum productivity; wasteful of time or resources
Example
The old computer system was inefficient and wasted a lot of time.
El sistema de computadoras antiguo era ineficiente y desperdiciaba mucho tiempo.
C1 noun /ˈsɔː.dʌst/

sawdust

aserrín
Meaning
The tiny particles of wood produced by sawing or sanding.
Example
The floor was covered with sawdust from the carpentry work.
El suelo estaba cubierto con aserrín del trabajo de carpintería.
C2 adjective /ˈdʒen.ɪ.tɪv/

genitive

genitivo
Meaning
relating to or denoting a case of nouns and pronouns indicating possession
Example
In English, the genitive case is often shown with an apostrophe and 's'.
En inglés, el caso genitivo a menudo se muestra con un apóstrofe y 's'.
C1 verb /əˈkleɪm/

acclaim

elogiar
Meaning
to praise enthusiastically and publicly
Example
The audience acclaimed the actor for his outstanding performance.
La audiencia aclamó al actor por su impresionante actuación.
B1 noun ˈtʊə.rɪ.zəm

tourism

turismo
Meaning
The commercial organization and operation of vacations and visits to places of interest.
Example
Tourism drives economic growth in many countries.
El turismo impulsa el crecimiento económico en muchos países.
C1 noun /ˈfɔːrˌθɔːt/

forethought

previsión
Meaning
careful consideration of what will be necessary or may happen in the future
Example
With a little forethought, we could have avoided the problem.
Con un poco de previsión, podríamos haber evitado el problema.
C2 adjective /ˌɪnfəˈlɪsɪtəs/

infelicitous

inadecuado
Meaning
not suitable or well chosen; awkward or unfortunate
Example
His infelicitous remark ruined the atmosphere of the meeting.
Su comentario inadecuado arruinó el ambiente de la reunión.
B2 verb /ˈæktɪveɪt/

activate

activar
Meaning
to make something start or function
Example
She pressed the button to activate the machine.
Ella presionó el botón para activar la máquina.
A2 noun /ˈkʌstəmər/

customer

cliente
Meaning
a person or organization that buys goods or services from a store or business
Example
The shopkeeper greeted the customer with a smile.
El tendero saludó al cliente con una sonrisa.
B1 adjective /ˈkɒn.fɪ.dənt/

Confident

seguro de sí mismo; confiado; determinado
Meaning
self-assured; certain; having belief in one's abilities
Example
She felt confident about her performance in the exam.
Ella se sintió segura de su desempeño en el examen.
C1 noun /ˈziːnɪθ/

zenith

cenit
Meaning
The time at which something is most powerful or successful; the highest point.
Example
Her career reached its zenith in the late 1990s.
Su carrera alcanzó su cenit a fines de los años 90.
A2 verb /pʊl/

pull

tirar
Meaning
to exert force to move something toward oneself; to drag or tug
Example
Please pull the door to open it.
Por favor, tira de la puerta para abrirla.
A2 adjective /ˈfaɪ.nəl/

Final

final; concluyente; decisivo; último
Meaning
last; concluding; decisive; ultimate
Example
This is the final exam of the semester.
Este es el examen final del semestre.
C2 adjective /ˈlæmbənt/

lambent

luminiscente suave
Meaning
glowing or flickering softly; having a gentle radiance
Example
The lambent light of the candle filled the room with warmth.
La luz luminiscente de la vela llenó la habitación con calor.
B1 adverb /ˈðɛərˌfɔr/

Therefore

por lo tanto
Meaning
for that reason; consequently
Example
It was raining, therefore we stayed inside.
Estaba lloviendo, por lo tanto, nos quedamos adentro.
C1 noun /sɔːd fɪʃ/

Sword fish

pez espada
Meaning
A large marine fish with an elongated bill resembling a sword
Example
The swordfish can swim at speeds up to 60 mph.
El pez espada puede nadar a velocidades de hasta 60 mph.
B2 verb /dɪˈmɒlɪʃ/

demolish

demoler
Meaning
to destroy completely, especially a building or structure
Example
The city decided to demolish the old stadium to build a new one.
La ciudad decidió demoler el viejo estadio para construir uno nuevo.
C1 verb /sɪndʒ/

singe

quemar ligeramente
Meaning
To burn something superficially or lightly, especially at the edges.
Example
The fire singed his eyebrows.
El fuego le quemó las cejas.
A1 verb /ˌʌndərˈstænd/

understand

entender
Meaning
to know the meaning of something; to comprehend
Example
Do you understand the instructions?
¿Entiendes las instrucciones?
C1 verb /daɪˈleɪt/

dilate

dilatar
Meaning
To make wider, larger, or more open.
Example
The doctor used drops to dilate the patient's pupils.
El doctor usó gotas para dilatar las pupilas del paciente.
C2 noun /ˌrɛv.əˈkeɪ.ʃən/

revocation

revocación
Meaning
The act of officially canceling or withdrawing something.
Example
The court ordered the revocation of his license.
El tribunal ordenó la revocación de su licencia.
C2 noun /ˌniːoʊˈdɑːrwɪnɪzəm/

neo-darwinism

neodarwinismo
Meaning
A modern interpretation of Darwin's theory of evolution, integrating genetics and natural selection.
Example
Neo-Darwinism combines Darwin’s theory of natural selection with modern genetics.
El neodarwinismo combina la teoría de selección natural de Darwin con la genética moderna.
C1 adjective /nɪˈɡlɛktfʊl/

neglectful

desatento
Meaning
Failing to give proper care or attention.
Example
The neglectful parent left the child alone for hours.
El padre desatento dejó al niño solo durante horas.
A2 noun /ˈpɜːr.pəl/

Purple

morado
Meaning
a color intermediate between red and blue; violet color
Example
The purple flowers bloomed beautifully in the garden.
Las flores moradas florecieron hermosamente en el jardín.
B2 noun /ˈwɜːk.fləʊ/

workflow

flujo de trabajo, secuencia de procesos
Meaning
The sequence of processes through which a piece of work passes from initiation to completion.
Example
A well-structured workflow enhances productivity.
Un flujo de trabajo bien estructurado mejora la productividad.
C1 noun /ˈɪnsɪdəns/

incidence

incidencia
Meaning
the occurrence, rate, or frequency of something
Example
The incidence of road accidents has decreased this year.
La incidencia de accidentes de tráfico ha disminuido este año.
B2 adjective /kɔːrs/

coarse

áspero, rugoso
Meaning
Rough in texture or manner; not smooth or refined.
Example
The fabric felt coarse to the touch.
El tejido se sentía áspero al tacto.
C1 adjective /haɪˈdrɔːlɪk/

hydraulic

hidráulico
Meaning
operated by the pressure of liquid, especially water or oil
Example
The mechanic repaired the hydraulic system of the machine.
El mecánico reparó el sistema hidráulico de la máquina.
B2 noun /prəˈpɔːʃən/

proportion

proporción
Meaning
a part, share, or number considered in comparative relation to a whole
Example
The proportion of students passing the exam was high.
La proporción de estudiantes que aprobaron el examen fue alta.
C1 verb /kwɛl/

quell

sofocar
Meaning
To suppress or put an end to something, usually by force.
Example
The police were called to quell the violent protest.
La policía fue llamada para sofocar la protesta violenta.
C2 adjective, adverb /ˈsaɪdlɔːŋ/

sidelong

mirada oblicua
Meaning
Directed to the side; indirect, furtive, or not straightforward.
Example
She gave him a sidelong glance across the room.
Ella le lanzó una mirada oblicua a través de la habitación.
C1 noun ˌsteɪbəlaɪˈzeɪʃən

stabilization

estabilización
Meaning
The process of making or becoming stable.
Example
The stabilization of the structure was essential after the earthquake.
La estabilización de la estructura fue esencial después del terremoto.
B1 noun, verb /ˈmɜːrdər/

murder

asesinato
Meaning
the unlawful killing of a person; to kill someone unlawfully and intentionally
Example
The detective investigated the murder that shocked the town.
El detective investigó el asesinato que sorprendió a la ciudad.
B1 adjective /sɪˈlek.tɪd/

selected

seleccionado
Meaning
carefully chosen from a group for a particular purpose
Example
He was one of the selected candidates for the scholarship.
Él fue uno de los candidatos seleccionados para la beca.
C2 noun /ˈmɪlk pɒt/

Milk-pot

lechetera
Meaning
a container specifically used for storing or serving milk
Example
She poured fresh milk from the milk-pot into her glass.
Ella vertió leche fresca de la lechetera en su vaso.
B2 noun ədˈvɑːns.mənt

advancement

avance
Meaning
The process of promoting or moving forward; development or improvement in a particular area.
Example
Technological advancement shapes the future.
El avance tecnológico da forma al futuro.
B1 adjective /ˈɔːɡənaɪzd/

organized

organizado
Meaning
Arranged in a systematic way, especially on a large scale.
Example
An organized approach to work increases productivity and reduces stress.
Un enfoque organizado para el trabajo aumenta la productividad y reduce el estrés.
B1 noun ɡʊdz

goods

mercancías
Meaning
Merchandise or possessions; things that are bought and sold.
Example
The company produces high-quality goods for export.
La empresa fabrica mercancías de alta calidad para la exportación.
C1 adjective /ˈstrɛnjuəs/

strenuous

arduo
Meaning
Requiring or using great effort and energy.
Example
Climbing the mountain was a strenuous task.
Escalar la montaña fue una tarea ardua.
C1 noun /ˌɪməˈtjʊərəti/

immaturity

inmadurez
Meaning
the state of not being fully developed emotionally, mentally, or physically; lack of maturity
Example
His immaturity made it difficult for him to handle responsibility.
Su inmadurez le dificultó manejar la responsabilidad.
C2 adjective /ɪˈfʌldʒənt/

effulgent

resplandeciente
Meaning
Shining brilliantly; radiant.
Example
Her effulgent smile brightened everyone's mood.
Su sonrisa resplandeciente iluminó el ánimo de todos.
C2 noun /ˌdʒerənˈtɑːkrəsi/

gerontocracy

gerontocracia
Meaning
A system of government or control by old people.
Example
The country was seen as a gerontocracy, dominated by elderly leaders.
El país era visto como una gerontocracia, dominada por líderes ancianos.
A1 adverb /waɪ/

Why

por qué
Meaning
For what reason or purpose; used to ask about the cause of something
Example
Why are you late today?
¿Por qué llegaste tarde hoy?
B1 adjective hɪˈstɔːrɪk

historic

histórico
Meaning
Famous or significant in history, or potentially so.
Example
Victory Day is a historic moment for Bangladesh.
El Día de la Victoria es un momento histórico para Bangladesh.
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.
C2 adjective /ˈkɒndaɪn/

condign

adecuado
Meaning
deserved, appropriate, and fitting (especially punishment)
Example
The criminal received condign punishment for his crimes.
El criminal recibió un castigo adecuado por sus crímenes.
C2 verb /lɪm/

limn

describir / delinear
Meaning
to depict or describe something vividly in words or art.
Example
The author limned the beauty of the countryside.
El autor describió vívidamente la belleza del campo.
C1 adjective /pəˈdæntɪk/

pedantic

excesivamente preocupado por los detalles menores o reglas
Meaning
Excessively concerned with minor details or rules; overly academic or bookish.
Example
Her pedantic explanations made the lecture dull.
Sus explicaciones pedantes hicieron que la conferencia fuera aburrida.
B2 noun /rʌʃ/

Rush

prisa; apresuramiento
Meaning
a sudden quick movement toward something; a period of great activity or demand; hurry
Example
There was a rush to buy tickets for the concert.
Hubo una prisa por comprar boletos para el concierto.
A1 pronoun /hɪz/

his

su
Meaning
belonging to or associated with a male person previously mentioned
Example
This is his book on the table.
Este es su libro en la mesa.
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.
C2 noun /ˈreɪdɪks/

radix

base
Meaning
the base or root of something; the number on which a system of numeration is built
Example
In mathematics, the decimal system has a radix of ten.
En matemáticas, el sistema decimal tiene una base de diez.
C1 noun /ˈhɛzɪtənsi/

hesitancy

vacilación
Meaning
The tendency to pause or delay due to uncertainty or fear.
Example
His hesitancy in answering made everyone doubt his confidence.
Su vacilación al responder hizo que todos dudaran de su confianza.
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.
A2 noun/verb/adjective /ˈsʌbdʒɪkt/ (noun), /səbˈdʒɛkt/ (verb)

subject

tema
Meaning
noun: a topic or theme; verb: to cause to undergo; adjective: dependent or under authority
Example
The teacher introduced a new subject in class.
El maestro presentó una nueva asignatura en la clase.
B2 adjective /ˌʌnəˈfɪʃ.əl/

Unofficial

no oficial
Meaning
not officially authorized or confirmed; informal
Example
The unofficial results showed a close race.
Los resultados no oficiales mostraron una carrera reñida.
C2 verb /ˌoʊvərˈstraɪd/

overstride

cruzar dando pasos largos
Meaning
To stride over something; to step across with long steps.
Example
He managed to overstride the narrow stream with ease.
Él logró cruzar el estrecho arroyo con facilidad.
C1 adjective /ˈtɛmpərd/

tempered

templado
Meaning
having a specified temper or disposition; strengthened or moderated.
Example
She gave a tempered response to the criticism.
Ella dio una respuesta templada a las críticas.
B2 adverb /ɪˈfɪʃəntli/

efficiently

de manera eficiente
Meaning
in a way that achieves maximum productivity with minimum wasted effort or expense
Example
She managed to complete the task efficiently within the deadline.
Ella logró completar la tarea de manera eficiente dentro del plazo.
C1 noun ˌfɜːr.tɪ.laɪˈzeɪ.ʃən

fertilization

fertilización
Meaning
The process of adding nutrients to soil to increase crop productivity.
Example
Organic fertilization enhances soil health.
La fertilización orgánica mejora la salud del suelo.
C2 adjective /əˈfɔːrsed/

Aforesaid

mencionado anteriormente
Meaning
mentioned before; previously stated
Example
The aforesaid conditions must be met before approval.
Las condiciones mencionadas anteriormente deben cumplirse antes de la aprobación.
C1 adjective /ˌkɒnsɪˈkwɛnʃəl/

consequential

trascendental
Meaning
Having important or significant consequences; resulting from something.
Example
The meeting was consequential for the future of the project.
La reunión fue trascendental para el futuro del proyecto.
C1 adjective /dɪˈʃɛvəld/

disheveled

desordenado
Meaning
Untidy, messy, or in disorder, especially of hair or clothing.
Example
He arrived with disheveled hair and wrinkled clothes.
Él llegó con el cabello desordenado y la ropa arrugada.
B1 noun /ˈprɛər/

prayer

oración
Meaning
a solemn request for help or expression of thanks addressed to God or another deity
Example
She recited a prayer before the meal.
Ella recitó una oración antes de la comida.
C1 adjective ˌkaʊntəprəˈdʌktɪv

counterproductive

contraproducente
Meaning
Having the opposite of the desired effect; tending to hinder rather than help.
Example
Counterproductive activities often stem from dissatisfaction.
Las actividades contraproducentes a menudo surgen de la insatisfacción.
C2 noun /ɪnˈkɒnstənsi/

inconstancy

inconstancia
Meaning
The quality of changing frequently or being unreliable.
Example
The inconstancy of the weather makes planning difficult.
La inconstancia del clima hace que planificar sea difícil.
A2 noun /ˈdeɪ.tə/

Data

datos
Meaning
facts and statistics collected together for reference or analysis; information in digital form
Example
Scientists analyzed the data from thousands of experiments to reach their conclusion.
Los científicos analizaron los datos de miles de experimentos para llegar a su conclusión.
B2 adverb /ɪmˈpɔːtəntli/

importantly

de manera importante
Meaning
in a way that is of great significance or value
Example
Importantly, the report highlights the need for immediate action.
De manera importante, el informe resalta la necesidad de acción inmediata.
B1 noun /ˈfaɪ.tər/

Fighter

avión de combate
Meaning
a military aircraft designed for attacking other aircraft; a person who fights
Example
The fighter jet flew overhead during the military parade.
El avión de combate voló sobre nuestras cabezas durante el desfile militar.
C2 noun /tʊˈriːn/

tureen

tureen
Meaning
A large deep dish with a cover, used for serving soups or stews.
Example
She brought the hot soup to the table in a silver tureen.
Ella trajo la sopa caliente a la mesa en una tureen plateada.
C1 noun/verb /kruːˈseɪd/

crusade

cruzada, campaña intensa
Meaning
a vigorous campaign for a social, political, or religious cause; to fight passionately for a cause
Example
She has been crusading for women's rights all her life.
ella ha estado cruzando por los derechos de las mujeres toda su vida.
C1 noun /kʌˈstoʊ.di.ən/

Custodian

conserje; guardián; encargado
Meaning
a person who has responsibility for or looks after something; a caretaker or guardian
Example
The school custodian ensures that all buildings are clean and secure.
El conserje de la escuela se asegura de que todos los edificios estén limpios y seguros.
B2 noun /rɪˈvaɪ.vəl/

Revival

renacimiento
Meaning
an improvement in the condition or strength of something; renewed interest in or attention to something
Example
There has been a revival of interest in traditional crafts.
Ha habido un renacimiento del interés en los oficios tradicionales.