Word library
8,130 words, searchable by word, definition, part of speech, and CEFR level.
Very bad, unpleasant, or of poor quality.
Relating to land or an area that a person, animal, or country claims and defends as its own.
An area of land controlled by a particular country, group, or animal.
Brief and to the point, sometimes to the point of seeming rude.
A short set of questions used to check what someone knows or can do.
A formal statement, especially one given in court, describing what someone knows about an event.
A hormone, present in higher amounts in males, that drives the development of male physical characteristics and reproductive function.
Written words, especially the main body of a book or document, or a short message sent by phone.
A category of writing defined by its purpose and typical features, such as a report, a letter, or a story.
A book that gives structured information about a subject, used for studying.
Specific words, quotations, or details taken directly from a text to support a point or argument.
The way something feels when you touch it, such as rough or smooth.
Used when comparing two things.
To tell someone you are grateful for something they did.
A phrase used to show that you are grateful for something someone did.
Feeling or showing gratitude.
Used to point to a specific thing that is not close to the speaker, or to introduce more information about something.
Used before a specific noun that both the speaker and listener already know or have mentioned.
A building where plays, shows, or films are performed or shown.
Belonging to more than one other person or thing already mentioned.
Used to talk about two or more people or things already mentioned, as the object of a verb.
The main idea or message that runs through a piece of writing.
At that time, or next in a sequence of events.
A system of government in which religious leaders or laws hold ultimate authority.
A mathematical statement that has been proven to be true through logical reasoning.
An explanation of why something happens, especially one built on evidence and testing rather than a simple guess.
In or at that place, referring to somewhere other than here.
For that reason, used to introduce a result or conclusion.
Relating to heat, or designed to keep in or generate heat.
A measure of how easily a material allows heat to pass through it.
The state in which two objects in contact reach the same temperature and no more heat flows between them.
An electrical component whose resistance changes predictably with temperature, often used as a temperature sensor.
The branch of physics concerned with heat, energy and how they transform from one form to another.
The global pattern of ocean currents driven by differences in water temperature and salt content.
An instrument used to measure temperature.
The process by which an organism keeps its internal body temperature within a stable range.
A word used to point to more than one thing that is close to you.
Used to talk about two or more people or things already mentioned.
Having a large distance between its two opposite sides or surfaces.
A dense group of bushes or small trees growing close together.
The part of the leg between the hip and the knee.
Having a small distance between its two opposite sides or surfaces.
An object, idea, or matter that is not named specifically.
To use your mind to consider or form an opinion about something.
Coming after the second and before the fourth in a sequence.
A story told using 'he', 'she', or 'they' rather than from inside a character's own voice.
Feeling like you need to drink.
The number after twelve and before fourteen.