Vocabulary Cards
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C1 adjective
bilateral
bilateral
Meaning
An agreement or relationship between two parties that is mutual, two-sided, or reciprocal.
Example
The two countries signed a bilateral trade agreement.
C1 noun
bilateral negotiations
negociaciones bilaterales
Meaning
Negotiations or discussions between two parties, typically countries or organizations.
Example
Bilateral negotiations resolve disputes.
C1 noun
Bile
bilis
Meaning
a bitter greenish-brown alkaline fluid that aids digestion and is secreted by the liver and stored in the gallbladder
Example
The liver produces bile to help digest fats.
B2 adjective
bilingual
bilingüe
Meaning
Able to speak two languages fluently.
Example
She grew up in a bilingual household speaking both English and Spanish.
C2 adjective
bilious
bilioso
Meaning
Relating to bile or an ill-tempered, irritable disposition.
Example
He became bilious after hearing the unfair criticism.
C2 verb
bilk
engañar
Meaning
To cheat or defraud someone of money or rights.
Example
The scammer tried to bilk elderly people out of their savings.
A2 noun
Bill
pico
Meaning
the beak of a bird, especially when it is broad and flat
Example
The duck used its bill to filter food from the water.
C2 noun
billingsgate
lenguaje grosero o abusivo
Meaning
Coarse or abusive language; vulgar or offensive speech.
Example
The heated argument quickly descended into billingsgate.
A2 noun
billion
mil millones
Meaning
the number 1,000,000,000 (one thousand million)
Example
The company is worth more than a billion dollars.
C2 verb
billow
surgir como olas
Meaning
To swell or rise in large waves or surges; to flow outward in a rolling motion.
Example
Smoke billowed from the burning building.
C2 adjective
billowing
ondeando
Meaning
Describing something that swells or surges outward in waves or large masses.
Example
She walked through the billowing curtains.
C2 noun
bimester
período de dos meses
Meaning
A period of two months.
Example
The academic program is divided into six bimesters.
B2 verb
bind
atar
Meaning
To tie, fasten, or hold together securely.
Example
This force binds quarks together.
B2 noun
Bio-data
currículum vitae
Meaning
biographical data; a resume or curriculum vitae containing personal and professional information
Example
Please submit your bio-data along with the job application.
C2 noun
bioavailability
capacidad de absorción del cuerpo
Meaning
The degree to which a substance can be absorbed and used by the body.
Example
Turmeric's bioavailability increases when consumed with black pepper.
C2 noun
biocide
biocida
Meaning
A chemical substance or microorganism intended to destroy, deter, render harmless, or exert a controlling effect on any harmful organism.
Example
Biocides help control pests and reduce the spread of diseases.
B2 adjective
biodegradable
biodegradable
Meaning
Capable of being decomposed by natural biological processes, typically by bacteria or other living organisms, without causing harm to the environment.
Example
Biodegradable materials break down naturally without harming the environment.
B2 noun
biodiversity
biodiversidad
Meaning
The variety of life in the world or in a particular habitat or ecosystem.
Example
Rainforests are home to immense biodiversity.
C1 phrase
biodiversity preservation
preservación de la biodiversidad
Meaning
The protection and conservation of the variety of life in all its forms, including different species, genetic diversity, and ecosystems.
Example
Biodiversity preservation is critical for ecological balance.
B2 noun
biofuel
biocombustible
Meaning
A fuel derived immediately from living matter, as opposed to fossil fuels derived from long-dead biological matter.
Example
Biofuels reduce dependence on conventional energy sources.
C2 noun
biograph
biografía
Meaning
A written account of a person's life; an early motion-picture projector (historical use).
Example
The library holds an old biograph of the poet.
B2 noun
Biography
biografía
Meaning
an account of someone's life written by someone else; the story of a person's life
Example
I'm reading a fascinating biography of Albert Einstein.
B2 adjective
biological
biológico
Meaning
relating to the science of biology or to life and living organisms
Example
She is studying biological sciences at university.
B1 noun
biology
biología
Meaning
The scientific study of living organisms.
Example
Biology explains how plants and animals function.