conjecture
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C1 noun/verb kənˈdʒɛk.tʃər

conjecture

conjetura
Meaning
An opinion or conclusion formed on the basis of incomplete information; to form an opinion or supposition about something.
Example
The scientist's conjecture was later proven true.
La conjetura del científico fue luego comprobada como cierta.
B1 noun /kəmˈpɛtɪtər/

competitor

competidor
Meaning
a person, team, or company that competes with others
Example
The company lowered its prices to beat its main competitor.
La empresa redujo sus precios para vencer a su principal competidor.
B2 noun /ˈruːmər/

Rumour

rumor; chisme; noticia
Meaning
a currently circulating story or report of uncertain or doubtful truth; gossip
Example
There's a rumour that the company will close next month.
Hay un rumor de que la empresa cerrará el próximo mes.
C1 noun /ˈtændʒənt/

tangent

tangente
Meaning
a straight line or plane that touches a curve or curved surface at a point but does not cross it
Example
The teacher drew a tangent to the circle on the board.
El profesor dibujó una tangente al círculo en la pizarra.
B2 adjective /aʊtˈreɪdʒəs/

outrageous

atroz
Meaning
Shockingly bad or excessive; very unusual or amusing.
Example
The comedian told an outrageous joke.
El comediante contó un chiste atroz.
C1 noun /prəˈpɛlər/

propeller

hélice
Meaning
A mechanical device with blades that rotates to drive a ship, aircraft, or other vehicle forward.
Example
The airplane’s propeller cut through the air with great speed.
La hélice del avión cortó el aire con gran velocidad.
C2 noun /ɪˈfjuːʒən/

effusion

efusión
Meaning
An unrestrained outpouring of words, feelings, or emotions.
Example
His letter was an effusion of love and longing.
Su carta fue una efusión de amor y anhelo.
B1 noun /ˈtreɪ.dər/

Trader

comerciante
Meaning
a person who buys and sells goods or financial securities for profit
Example
The trader made a good profit from selling imported goods.
El comerciante hizo una buena ganancia al vender bienes importados.
B1 verb /ɪkˈsplɔːr/

explore

explorar
Meaning
to travel through or study something in order to learn more about it
Example
They decided to explore the forest together.
Decidieron explorar el bosque juntos.
C2 noun /ʌnˈkloʊðɪŋ/

unclothing

desvestirse
Meaning
the act or process of removing clothing
Example
The child quickly ran inside for unclothing after playing in the mud.
El niño corrió rápidamente adentro para desvestirse después de jugar en el barro.
C2 noun /æmˈbroʊʒə/

ambrosia

ambrosía
Meaning
The food of the gods in classical mythology; something extremely pleasing to taste or smell.
Example
The dessert was so delicious that it tasted like ambrosia.
El postre estaba tan delicioso que sabía a ambrosía.
A2 noun /hoʊl/

Hole

agujero; hoyo;
Meaning
a hollow place in a solid body or surface; an opening through something
Example
The dog dug a deep hole in the backyard to bury its favorite bone.
El perro cavó un agujero profundo en el patio trasero para enterrar su hueso favorito.
C1 noun /ˌkɒndʒʊˈɡeɪʃən/

conjugation

conjugación
Meaning
the variation of the form of a verb to indicate tense, person, and number
Example
French verbs have complex conjugations.
Los verbos franceses tienen conjugaciones complejas.
A2 adjective /ˈnɔɪ.zi/

Noisy

ruidoso
Meaning
making a lot of loud or unpleasant sound; clamorous
Example
The noisy construction work outside made it difficult to concentrate.
El ruido de la construcción afuera hacía difícil concentrarse.
B2 adjective /ˌkaɪnd ˈhɑːrtɪd/

kind-hearted

amable
Meaning
Having a kind and generous nature; showing compassion and care for others.
Example
She is known as a kind-hearted teacher who always helps her students.
Es conocida como una maestra amable que siempre ayuda a sus estudiantes.
C1 /ʃrɛd/

shred

triturar
Meaning
to tear or cut something into small pieces
Example
She shredded the old documents before throwing them away.
Ella trituró los viejos documentos antes de tirarlos.
C1 verb /ˈsenʃər/

censure

censurar, criticar severamente
Meaning
to criticize severely; to express strong disapproval
Example
The committee censured the politician for his misconduct.
El comité censuró al político por su mala conducta.
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.
C1 verb /rɪˈtælieɪt/

retaliate

vengar
Meaning
to make an attack in return for a similar attack
Example
The army retaliated after the enemy attack.
El ejército se vengó después del ataque enemigo.
B2 noun /ɪɡˈzæmɪnər/

examiner

examinador
Meaning
A person who tests or inspects knowledge, skills, or qualifications
Example
The examiner reviewed each student's answer sheet carefully.
El examinador revisó cuidadosamente la hoja de respuestas de cada estudiante.
C2 noun /ˈhʌm.ək/

hummock

montículo
Meaning
A small hill, mound, or ridge of earth or ice.
Example
The hikers rested on a grassy hummock by the river.
Los excursionistas descansaron en un montículo de hierba junto al río.
C1 noun /ˈælɔɪ/

alloy

aleación
Meaning
A mixture of metals or a metal combined with another element.
Example
Bronze is an alloy of copper and tin.
El bronce es una aleación de cobre y estaño.
B2 verb /ˈwaɪdən/

widen

ensanchar
Meaning
to make or become wider or broader
Example
They plan to widen the road next year.
Ellos planean ensanchar la carretera el próximo año.
C2 noun /ˈbɪɡ.ə.mɪst/

bigamist

bigámico
Meaning
A person who commits the crime of marrying someone while already married to another.
Example
The man was arrested for being a bigamist.
El hombre fue arrestado por ser un bigamista.
C1 noun/verb /freɪ/

fray

pelea, desgastarse
Meaning
As a noun, a fight or heated dispute; as a verb, to unravel or wear out through friction.
Example
He tried to stay calm, but his nerves began to fray during the argument.
Trató de mantenerse calmado, pero sus nervios empezaron a desgastarse durante la discusión.
A1 noun /dʒɒb/

Job

empleo; trabajo; puesto
Meaning
a paid position of regular employment; a task or piece of work
Example
She found a new job at the technology company after graduation.
Encontró un nuevo trabajo en la empresa tecnológica después de la graduación.
C1 noun /ˌɛkstrəˈdɪʃən/

extradition

extradición
Meaning
the official process of sending someone accused of a crime to another country or state
Example
The extradition of the suspect was delayed due to legal issues.
La extradición del sospechoso se retrasó debido a problemas legales.
B2 adjective ˈteɪləd

tailored

hecho a medida
Meaning
Made or adapted for a particular purpose or person.
Example
He wore a tailored suit that complemented his physique perfectly.
Él llevaba un traje hecho a medida que complementaba perfectamente su físico.
A2 adjective /kənˈsɜːnd/

concerned

preocupado
Meaning
worried or anxious about something; involved or interested in something
Example
She was concerned about her mother's health.
Ella estaba preocupada por la salud de su madre.
C1 verb /flɔːnt/

flaunt

presumir
Meaning
to show off something proudly, often to attract attention
Example
She likes to flaunt her new jewelry at parties.
A ella le gusta presumir sus nuevas joyas en las fiestas.
B2 noun /ˈprɛsɪdənt/

precedent

precedente
Meaning
An earlier event or decision that serves as a guide or example for future similar situations.
Example
The judge’s ruling set a new precedent for similar cases.
La decisión del juez estableció un nuevo precedente para casos similares.
B1 adverb /ˈnætʃərəli/

Naturally

de forma natural
Meaning
in a natural manner; as expected; of course
Example
She naturally excels in mathematics.
Ella sobresale naturalmente en matemáticas.
C1 adjective /ˈdraʊ.zi/

Drowsy

somnoliento; adormilado; cansado
Meaning
feeling sleepy and lethargic; half asleep; tired
Example
I felt drowsy after the heavy meal.
Me sentí somnoliento después de la comida pesada.
B2 adjective /ʌnˈwaɪz/

unwise

imprudente
Meaning
Showing poor judgment; not sensible or prudent.
Example
It would be unwise to invest all your money in one company.
Sería imprudente invertir todo tu dinero en una sola empresa.
B2 verb /ˌoʊvərˈkʌm/

overcome

superar
Meaning
To succeed in dealing with a problem or difficulty.
Example
You can overcome procrastination with planning.
Puedes superar la procrastinación con planificación.
B1 verb /ɪkˈspɔːrt/

export

exportar
Meaning
to send goods or services to another country for sale
Example
The company exports cars to many countries.
La empresa exporta coches a muchos países.
B2 verb /siːs/

cease

detener
Meaning
to bring or come to an end; to stop doing something
Example
The noise ceased as soon as the children went inside.
El ruido cesó tan pronto como los niños entraron.
A2 noun /ˈsæd.nəs/

Sadness

tristeza, pena, dolor
Meaning
feeling of sorrow, unhappiness, or grief
Example
Her sadness was evident after hearing the bad news.
Su tristeza era evidente después de escuchar las malas noticias.
B1 adjective /ˈtrʌbəld/

troubled

preocupado
Meaning
experiencing or showing distress, anxiety, or worry
Example
He looked deeply troubled after hearing the bad news.
Parecía profundamente preocupado después de escuchar las malas noticias.
A2 noun, verb /pəʊst/

post

publicar
Meaning
a job or position, or to send something by mail
Example
She posted a letter to her friend yesterday.
Ella publicó una carta a su amiga ayer.
C2 adjective /ˈvjuː.ləs/

Viewless

invisible; sin opiniones
Meaning
invisible; having no views or opinions
Example
The ghost remained viewless to most people in the haunted house.
El fantasma permaneció invisible para la mayoría de las personas en la casa encantada.
C1 noun /frɪndʒ/

fringe

borde decorativo / orilla
Meaning
A decorative border of threads; the outer edge or margin of something.
Example
The festival had a fringe of small independent performances.
El festival tenía un borde de pequeñas actuaciones independientes.
C2 noun /ˈkɪŋɡlɪŋ/

kingling

rey pequeño
Meaning
A minor or petty king; a ruler of small importance.
Example
The kingling demanded respect from his people despite his small realm.
El rey pequeño demandó respeto de su gente a pesar de su pequeño reino.
C1 adjective /ˌʌnəˈdɔːrnd/

unadorned

sencillo, sin adornos
Meaning
Plain and simple; not decorated.
Example
The room was unadorned, with only a table and a chair.
La habitación estaba sencilla, con solo una mesa y una silla.
C1 noun ˈæ.sɛt ˌæl.əˈkeɪ.ʃən

asset allocation

asignación de activos
Meaning
An investment strategy that aims to balance risk and reward by apportioning a portfolio's assets according to an individual's goals, risk tolerance, and investment horizon.
Example
Proper asset allocation is key to financial growth.
Una correcta asignación de activos es clave para el crecimiento financiero.
B2 adjective /rɪˈzɪstənt/

resistant

resistente
Meaning
not affected by something; able to oppose or withstand
Example
This fabric is resistant to water and stains.
Este tejido es resistente al agua y las manchas.
B2 verb əˈkwaɪər

acquire

adquirir
Meaning
To gain or obtain something, especially knowledge or skills, through effort or experience.
Example
Volunteers acquire new skills through their experiences.
Los voluntarios adquieren nuevas habilidades a través de sus experiencias.
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.
B2 noun /ˈaɪkɒn/

icon

ícono, símbolo
Meaning
A person or thing regarded as a symbol of something, or a graphic symbol on a screen.
Example
The singer became a cultural icon.
El cantante se convirtió en un ícono cultural.
A1 noun /ˈtɔɪlət/

toilet

inodoro
Meaning
a fixture used for the disposal of human waste
Example
The public toilet was clean and well maintained.
El inodoro público estaba limpio y bien mantenido.
A1 noun /ˈbɔɪˌfrɛnd/

boyfriend

Meaning
a man or boy that someone is having a romantic or close relationship with
Example
She introduced her boyfriend to her parents.
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.
B2 verb /ˈræl.i/

rally

reunirse / recobrar fuerza
Meaning
to come together for a common purpose or to recover strength or spirit
Example
The team rallied after halftime and won the match.
El equipo se recuperó después del descanso y ganó el partido.
B1 noun /ˈmʌs.əl/

Muscle

músculo
Meaning
a body tissue consisting of fibers that can contract to produce movement
Example
Regular exercise helps strengthen your muscle.
El ejercicio regular ayuda a fortalecer tu músculo.
C2 verb /ˈkʌzən/

cozen

engañar, estafar
Meaning
to deceive, cheat, or trick someone
Example
He cozened the old man out of his money.
Él engañó al anciano y le quitó su dinero.
B2 noun, adjective /tɑːrt/

tart

tarta
Meaning
A small pie with a sweet or savory filling; or having a sharp, sour taste.
Example
She served a delicious apple tart for dessert.
Ella sirvió una deliciosa tarta de manzana para el postre.
C2 verb /dɪˈkæpɪteɪt/

decapitate

felicidad
Meaning
To cut off the head of a person or animal.
Example
The ancient executioner decapitated the criminal.
Ella no podía esconder su felicidad cuando recibió el premio.
C2 verb /ˈblækˌbɔːl/

blackball

excluir
Meaning
to exclude someone socially or vote against their membership in a group or club
Example
He was blackballed from the club after the controversy.
Fue expulsado del club después de la controversia.
C1 adjective /ˈdesələt/

Desolate

desierto; solitario; árido
Meaning
deserted; lonely; barren
Example
The abandoned village looked desolate and empty.
El pueblo abandonado se veía desolado y vacío.
A1 adjective /hɑːrd/

hard

duro
Meaning
solid, firm, or difficult to do or endure
Example
The exam was very hard for most students.
El examen fue muy difícil para la mayoría de los estudiantes.
C1 verb /əˈseɪl/

assail

atacar
Meaning
to attack violently, either physically or with words
Example
The politician was assailed with difficult questions.
El político fue asaltado con preguntas difíciles.
B2 verb /ˈbrɔːdən/

broaden

ampliar
Meaning
to make wider or larger in scope; to expand ideas, experience, or understanding
Example
Travel can broaden your perspective on different cultures.
Viajar puede ampliar tu perspectiva sobre diferentes culturas.
B1 adjective /ˈhæn.səm/

handsome

felicidad
Meaning
attractive in appearance, usually referring to men; also can mean generous or impressive in size.
Example
He looked very handsome in his new suit.
No pudo ocultar su felicidad cuando recibió el premio.
B2 noun /stɑːˈveɪ.ʃən/

Starvation

inanición
Meaning
suffering or death caused by lack of food; extreme hunger
Example
Many people died of starvation during the famine.
Muchas personas murieron de inanición durante la hambruna.
C1 adjective /ˈplæsɪd/

placid

sereno, tranquilo
Meaning
calm and peaceful, not easily disturbed
Example
She had a placid expression despite the chaos around her.
Ella tenía una expresión serena a pesar del caos a su alrededor.
C2 noun /kəˈdʒoʊləri/

cajolery

adulación
Meaning
Flattering or coaxing talk intended to persuade someone.
Example
Through cajolery, he convinced his boss to grant him a raise.
A través de la adulación, convenció a su jefe para que le diera un aumento.
B1 adverb /ˈfɜːrstli/

firstly

primero
Meaning
used to introduce the first point or reason in a discussion or argument
Example
Firstly, we need to address the budget issue before proceeding.
Primero, necesitamos abordar el problema del presupuesto antes de continuar.
C1 adverb /ˌɪnsɪˈdɛntəli/

incidentally

por cierto
Meaning
by the way; used to introduce a remark not directly related to the main subject
Example
Incidentally, did you know that she studied in Paris?
Por cierto, ¿sabías que estudió en París?
B1 noun /ˈbɔr.dər/

Border

frontera
Meaning
a line separating two political or geographical areas, especially countries
Example
They crossed the border between France and Spain by train.
Cruzaron la frontera entre Francia y España en tren.
B2 noun prəʊb

probe

sonda
Meaning
An unmanned exploratory spacecraft designed to transmit information about its environment.
Example
The probe collected data from the planet's surface.
La sonda recolectó datos de la superficie del planeta.
B2 noun /ˈæftərˌlaɪf/

afterlife

el más allá
Meaning
Life or existence that some believe continues after physical death.
Example
Many cultures have different beliefs about the afterlife.
Muchas culturas tienen creencias diferentes sobre el más allá.
C1 noun /tʃæmp/

champ

campeón / ganador
Meaning
an informal word for champion or winner.
Example
He is the new champ of the boxing tournament.
Él es el nuevo campeón del torneo de boxeo.
B1 verb /ˈmɛʒər/

measure

medir
Meaning
to determine the size, amount, or degree of something
Example
She measured the length of the table.
Ella midió la longitud de la mesa.
B1 phrase bɛst ˈɛf.ərt

best effort

mejor esfuerzo
Meaning
The maximum amount of effort or energy that someone can give.
Example
He gave his best effort to complete the task on time.
Él dio su mejor esfuerzo para completar la tarea a tiempo.
B2 noun ˈkærɪktər dɪˈvɛləpmənt

character development

desarrollo de personajes
Meaning
The process of creating a believable character in fiction by giving the character depth and personality.
Example
The character development of Sydney Carton is profound.
El desarrollo de personajes de Sydney Carton es profundo.
C2 noun /ˌhɛtərəʤəˈniːɪti/

heterogeneity

heterogeneidad
Meaning
the quality or state of being diverse in character or content
Example
The cultural heterogeneity of the city makes it vibrant and unique.
La heterogeneidad cultural de la ciudad la hace vibrante y única.
C1 verb /ˈhæmpər/

hamper

impedir
Meaning
to hinder or impede the movement or progress of
Example
The heavy rain hampered our travel plans.
La fuerte lluvia impidió nuestros planes de viaje.
A2 noun, adjective /ˈkrɪstʃən/

christian

cristiano
Meaning
a person who follows the religion based on the teachings of Jesus Christ
Example
She is a devoted Christian who attends church every Sunday.
Ella es una cristiana devota que asiste a la iglesia cada domingo.
B1 noun /tæŋk/

Tank

tanque
Meaning
a heavily armored fighting vehicle moving on a continuous track
Example
The tank rolled through the battlefield with powerful armor.
El tanque avanzó por el campo de batalla con armadura poderosa.
A2 noun /ˈkær.ɪk.tər/

Character

carácter; personalidad; rasgo;
Meaning
the mental and moral qualities distinctive to an individual; a person in a novel, play, or film
Example
She showed great character by helping others during the crisis.
Ella mostró un gran carácter ayudando a los demás durante la crisis.
B1 noun/verb /əˈwɔːrd/

award

premio
Meaning
a prize or recognition given for an achievement; to give a prize or recognition
Example
She received an award for her outstanding performance.
Ella recibió un premio por su rendimiento sobresaliente.
C1 adjective /ˈsaʊnd.pruːf/

Sound-proof

a prueba de sonido; que evita que el sonido entre o salga
Meaning
impervious to sound; preventing sound from entering or leaving
Example
The recording studio has sound-proof walls.
El estudio de grabación tiene paredes a prueba de sonido.
C2 noun/adjective /ˈæl.əˌbæs.tər/

alabaster

alabastro (piedra blanca mineral)
Meaning
A fine-grained, usually white variety of gypsum, often used for carving; also describes something smooth and pale like alabaster.
Example
The statue was carved from pure alabaster.
La estatua fue esculpida en puro alabastro.
A2 verb /tʊr/

Tour

recorrer
Meaning
to travel around a place for pleasure or to perform
Example
The band will tour several cities this summer.
La banda recorrerá varias ciudades este verano.
C1 verb /sɪˈkluːd/

seclude

aislar
Meaning
To keep someone away from other people; to isolate.
Example
The monk chose to seclude himself in the mountains.
El monje eligió aislarse en las montañas.
C1 verb /ɪnˈtɪmɪdeɪt/

intimidate

intimidar
Meaning
To frighten or overawe someone, especially to make them do what one wants.
Example
The bully tried to intimidate the smaller kids.
El matón intentó intimidar a los niños más pequeños.
C2 adjective /ˌdɛməˈnaɪəkəl/

demoniacal

demoníaco
Meaning
characteristic of or resembling a demon; wildly evil
Example
He gave a demoniacal laugh that terrified everyone.
Él dio una risa demoníaca que aterrorizó a todos.
A2 noun /ˈsoʊʃəl ˈmiːdiə/

social media

medios sociales
Meaning
Websites and applications that enable users to create and share content or to participate in social networking.
Example
Social media often causes delays.
Los medios sociales a menudo causan retrasos.
A2 noun /ˈlɔːndri/

laundry

felicidad
Meaning
clothes or linens that need to be washed or have been washed
Example
She folded the clean laundry neatly.
Ella no pudo ocultar su felicidad cuando recibió el premio.
B2 noun ˌjuːtɪlaɪˈzeɪʃən

utilization

utilización
Meaning
The action of making practical and effective use of something.
Example
Increased plastic utilization calls for better waste management.
El aumento de la utilización del plástico requiere una mejor gestión de los residuos.
B2 noun

Kitchen garden

huerto doméstico; jardín cerca de la cocina
B2 adverb /ˈmɪzərəbli/

Miserably

miserablemente
Meaning
in a wretched or unhappy manner; extremely badly
Example
The team performed miserably in the championship.
El equipo jugó miserablemente en el campeonato.
C1 noun /ˌɪndɪˈdʒɛstʃən/

indigestion

indigestión
Meaning
Discomfort or pain in the stomach associated with difficulty in digesting food.
Example
He avoided spicy food because it often gave him indigestion.
Él evitó la comida picante porque a menudo le provocaba indigestión.
C2 adjective /sɛpˈtɛnɪəl/

septennial

septenario
Meaning
Occurring every seven years.
Example
The festival is a septennial tradition in the village.
El festival es una tradición septenaria en el pueblo.
C2 noun /ˈkeɪsiːn/

Casein

caseína
Meaning
the main protein found in milk and cheese, used in food production and supplements
Example
Casein protein powder is popular among athletes for muscle recovery.
El polvo de proteína de caseína es popular entre los atletas para la recuperación muscular.
B2 noun /hoʊm ˈdɪstrɪkt/

home district

distrito natal
Meaning
the district where a person was born or originally comes from
Example
He returned to his home district after many years abroad.
Regresó a su distrito natal después de muchos años en el extranjero.
B2 adjective /plʌmp/

plump

gordo o redondeado
Meaning
having a full, rounded shape; pleasantly fat
Example
The cat was plump and well-fed.
El gato estaba gordo y bien alimentado.
C2 adjective /kəmˈbʌstɪbəl/

combustible

combustible
Meaning
Capable of catching fire and burning easily.
Example
Dry leaves are highly combustible.
Las hojas secas son altamente combustibles.
C2 adjective /ræpˈtɔːriəl/

raptorial

rapaz
Meaning
Relating to birds of prey or predatory behavior.
Example
The eagle is a raptorial bird with sharp talons.
El águila es un ave rapaz con garras afiladas.
C1 noun /ˈɑːlɪˌɡɑːrki/

oligarchy

oligarquía
Meaning
A small group of people having control of a country, organization, or institution.
Example
The nation was ruled by a wealthy oligarchy that controlled all resources.
La nación fue gobernada por una oligarquía rica que controlaba todos los recursos.
C1 adjective/noun /ˈnɜːr.tʃɚ.ɪŋ/

nurturing

cuidado, fomento, desarrollo
Meaning
The process of caring for and encouraging growth or development.
Example
A nurturing environment helps children thrive.
Un ambiente nurturing ayuda a los niños a prosperar.
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.
A2 noun /ˈhæb.ɪt/

habit

hábito
Meaning
A settled or regular tendency or practice, especially one that is hard to give up.
Example
Eye rubbing is a harmful habit.
Frotarse los ojos es un hábito perjudicial.
C1 noun /ˈaɪsətəʊp/

isotope

isótopo
Meaning
Atoms of the same element with equal number of protons but different numbers of neutrons.
Example
Carbon-14 is a radioactive isotope used in dating fossils.
El carbono-14 es un isótopo radiactivo utilizado en la datación de fósiles.
B2 adjective /fræŋk/

Frank

honesto; abierto; directo; sincero
Meaning
honest; open; straightforward; candid
Example
She gave me a frank opinion about my presentation.
ella me dio una opinión franca sobre mi presentación.
C1 adverb /ˌðɛərˈʌv/

Thereof

de eso
Meaning
of that; from that
Example
The contract and all amendments thereof must be signed.
El contrato y todas las enmiendas de eso deben ser firmados.
C2 noun ˌæɡ.roʊ.iˈkɒl.ə.dʒi

agroecology

agroecología
Meaning
A scientific discipline that studies agricultural systems by applying ecological concepts and principles.
Example
Agroecology promotes eco-friendly farming.
La agroecología promueve la agricultura ecológica.
B2 noun /ˌɑb.zɚˈveɪ.ʃən/

Observation

observación
Meaning
the action of watching something carefully; a comment or remark
Example
The scientist made careful observations of the experiment.
El científico hizo observaciones cuidadosas del experimento.
C1 noun /ˈskeɪ.biːz/

Scabies

sarna
Meaning
a contagious skin disease caused by mites that causes intense itching
Example
The doctor diagnosed him with scabies after examining the rash.
El doctor le diagnosticó sarna después de examinar la erupción.
B1 noun /kəˈsiːnoʊ/

casino

casino
Meaning
a place where people gamble and play games of chance
Example
They spent the evening playing cards at the casino.
Pasaron la tarde jugando cartas en el casino.
B1 adverb /ˈhaɪli/

highly

altamente
Meaning
to a great degree; very
Example
She is highly respected in her field.
Ella es altamente respetada en su campo.
C1 verb /tʃɑːr/

char

quemar
Meaning
To burn or scorch something so that it becomes blackened.
Example
The cook accidentally charred the steak.
El cocinero accidentalmente quemó el filete.
A2 noun /kɔːrn/

Corn

maíz
Meaning
a tall cereal plant that produces kernels on large ears; maize
Example
We grilled corn on the cob for dinner.
Asamos maíz en la mazorca para la cena.
C1 noun /ræmˈbuːtən/

Rambutan

rambután
Meaning
a tropical fruit with red spiky skin and white translucent sweet flesh similar to litchi
Example
The rambutan looks scary with its hairy skin but tastes very sweet inside.
El rambutan se ve aterrador con su piel peluda, pero tiene un sabor muy dulce por dentro.
C2 verb /ˌmɪsˈleɪ/

mislay

perder temporalmente
Meaning
to lose something temporarily by putting it in the wrong place
Example
I must have mislaid my keys somewhere in the house.
Debo haber perdido mis llaves en algún lugar de la casa.
C2 noun

Kinsfolk

familia, parientes
A1 interjection /oʊ/

oh

¡Oh!
Meaning
used to express surprise, realization, or understanding
Example
Oh, I didn't know you were here!
¡Oh, no sabía que estabas aquí!
C2 adjective /ˈθʌroʊˌɡoʊɪŋ/

thoroughgoing

completo, absoluto
Meaning
carried out to the full extent; absolute and complete
Example
She is a thoroughgoing professional in every sense.
Ella es una profesional completa en todos los sentidos.
C1 adjective /əˈdɛpt/

adept

hábil
Meaning
Very skilled or proficient at something.
Example
She is adept at solving complex mathematical problems.
Ella es hábil para resolver problemas matemáticos complejos.
B2 noun /ɡriːnz/

Greens

verduras de hoja
Meaning
Leafy vegetables such as spinach, lettuce, and cabbage
Example
Eating greens is important for good health.
Comer verduras de hoja es importante para una buena salud.
B1 noun /ˌrep.rɪˈzen.tə.tɪv/

representative

representante
Meaning
A person chosen or appointed to act or speak for another or others.
Example
The representative addressed critical issues.
El representante abordó problemas críticos.