Word library
8,130 words, searchable by word, definition, part of speech, and CEFR level.
A piece of art made by sticking different materials, such as paper or photos, onto a surface.
To fall down suddenly, or to fail or break down completely.
Unintended harm caused to people or things not directly targeted, especially in a military or business context.
A person you work with, especially in a professional job.
To gather things together from different places over time.
A tube in the kidney that gathers filtered fluid from many nephrons and adjusts how much water is reabsorbed before urine is formed.
Done or shared by a group of people acting together, rather than individually.
The process by which workers, through their union, negotiate with employers over pay and conditions.
To crash violently into something while moving.
An event in which two or more moving objects hit each other with force.
A mixture in which tiny particles of one substance are spread evenly through another without fully dissolving.
Informal words and expressions typical of everyday conversation rather than formal writing.
Secret cooperation between people or companies, usually to deceive others or break the law.
Relating to a colony, or to the period when one country controlled another as a colony.
The practice of one country controlling another, often taking its resources and imposing its own rule and culture.
The process by which one country takes control of another territory and settles people there.
The process of one country settling in and taking control of another territory, often displacing the people already living there.
A medical examination in which a thin camera is used to look inside the colon.
A country or area controlled by another country, or a group of the same kind of animal living together.
A visual quality such as red, blue, or green that objects have because of the light they reflect.
Having many bright colors, or full of interesting variety and detail.
Extremely large in size, extent, or degree.
The property of something that you see, such as red, blue, or green, produced by how it reflects light.
Having many bright colours.
A tall vertical structure, or a vertical section of writing or numbers.
A flat object with narrow teeth, used for smoothing and arranging hair.
A mixture or joining together of two or more things.
To join two or more things together to form one.
A rule that relates the pressure, volume and temperature of a fixed amount of gas as any of the three change together.
Able to catch fire and burn easily.
The chemical process of burning, in which a substance reacts quickly with oxygen and releases heat and light.
To move toward the speaker or a certain place.
A funny film, play, or show meant to make the audience laugh.
An object in space made of ice and dust that develops a glowing tail as it passes near the sun.
The long, glowing stream of dust and gas that trails behind a comet as it nears the sun.
A state of physical ease, or something that gives relief from worry.
Giving a pleasant feeling of physical ease, without pain or difficulty.
A magazine or book that tells a story mainly through drawings.
A grammar error in which two complete sentences are joined by only a comma instead of a proper connector.
An order given with authority, or control over a situation or group.
To take control of something, especially by force or without permission, often for official or emergency use.
To honor or remember a person or event, often with a ceremony, holiday, or monument.
To begin.
To praise someone formally for something they have done well.
A relationship between two species in which one benefits and the other is neither helped nor harmed.
Matching in size, degree, or amount to something else.
A spoken or written remark that expresses an opinion or reaction.
The activity of buying and selling goods and services, especially on a large scale.