CEFR Level
The variety of plant and animal life in a particular habitat or ecosystem.
"Protecting biodiversity helps maintain ecological balance."
A fuel derived immediately from living matter, as opposed to fossil fuels derived from long-dead biological matter.
"Biofuels reduce dependence on conventional energy sources."
A written account of someone's life.
"She is writing a biography of the famous poet."
relating to the science of biology or to life and living organisms
"She is studying biological sciences at university."
a senior member of the Christian clergy, usually in charge of a diocese and empowered to confer holy orders.
"The bishop delivered a powerful sermon during Sunday service."
a female dog
"The bitch gave birth to five puppies."
having a sharp, unpleasant taste or showing strong hostility or resentment
"She felt bitter about losing the competition."
in an angry, hurt, or resentful way; extremely; severely
"She complained bitterly about the unfair treatment."
a feeling of anger and unhappiness caused by unfair treatment or disappointment
"His bitterness after the breakup was evident to everyone."
very strange or unusual, especially so as to cause interest or amusement
"He told a bizarre story that no one could believe."
a snake with dark or black colored skin
"The black snake slithered through the grass."
the act of demanding money or advantage by threatening to reveal secrets; to force someone to act by using such threats
"He tried to blackmail her by threatening to reveal the documents."
a person who makes and repairs things made of iron
"The blacksmith hammered the hot iron into a horseshoe."
the flat cutting edge of a tool, knife, or weapon
"The blade of the knife was very sharp."
lacking strong features, flavor, or character; dull or uninteresting
"The soup was too bland for my taste."
a strong gust of wind, an explosion, or a loud sound; to destroy or shatter by explosion
"The explosion sent a powerful blast through the building."
to burn brightly or powerfully
"The fire blazed for hours before it was brought under control."
A coloured jacket worn by members of a club, team, or school as part of a uniform.
"He looked sharp in his navy blue blazer at the event."
burning fiercely; extremely hot; very bright
"The blazing sun made the day extremely hot."
cold, miserable, or without hope
"The future seemed bleak after the economic downturn."
to mix different substances or elements together so that they form a smooth combination
"She blended the fruits to make a smoothie."
to close and open the eyes quickly.
"She blinked rapidly to clear the dust from her eyes."
A system of recording information in a way that makes it difficult or impossible to change, hack, or cheat the system
"Blockchain technology ensures transparency in financial transactions."
to produce flowers; to develop or flourish; a flower or the state of flowering
"The roses bloom beautifully every spring."
a flower or mass of flowers on a tree or plant; to develop or flourish
"The small garden began to blossom in spring."
a detailed plan or design; a guide for making something
"The architect shared the blueprint of the new building with the team."
a feeling of sadness; a style of music with melancholy themes
"Listening to blues music always calms him down."
to deceive someone by pretending to have strength, knowledge, or resources that one does not actually possess
"He tried to bluff his way into the exclusive club."
a careless or stupid mistake
"The report was full of spelling blunders."
not sharp; direct and straightforward in speech
"Her blunt remarks offended some people."
in a direct way without trying to be polite; frankly
"He told her bluntly that she was wrong."
to make something unclear or difficult to see
"Tears blurred her vision."
to become red in the face due to embarrassment or shyness
"She blushed when he complimented her."
to talk with pride about something you have or achieved
"He boasted about his new car."
a short sudden movement up and down; to move quickly up and down
"The small boat began to bob on the waves."
relating to or concerning the body
"He suffered bodily harm in the accident."
a person employed to protect someone from harm
"The celebrity arrived with her bodyguard."
showing courage, confidence, or willingness to take risks
"She made a bold decision to start her own business."
in a confident and brave way; without fear
"She boldly stepped forward to face the challenge."
willingness to take risks; confidence and courage in behavior
"Her boldness in confronting the problem impressed everyone."
To move suddenly and quickly; also to fasten something with a bolt.
"The horse bolted from the stable after hearing a loud noise."
military aircraft designed to drop bombs on targets
"The bomber squadron flew over the city at dawn."
an attack using bombs or explosives
"The city was devastated by the bombing."
a connection or relationship between people or things
"The sisters share a close bond."
To show disapproval by shouting 'boo'; or a sound made to surprise or scare.
"The audience began to boo the bad performance."
A deep, resonant sound; a period of rapid growth or increase.
"The tech industry experienced a major boom in the early 2000s."
To increase, improve, or raise something.
"The company launched a campaign to boost sales."
a small enclosed space or area used for a specific purpose, such as voting or selling.
"He went into the voting booth to cast his ballot."
relating to plants or plant life
"She works at the botanical garden."
the scientific study of plants
"She is studying botany at the university."
