Word library
8,130 words, searchable by word, definition, part of speech, and CEFR level.
Relating to a military force or group sent on a specific mission, usually to a foreign country.
The cost of something, or money spent on a particular purpose.
Costing a lot of money.
Knowledge or skill gained by doing something, or an event that happens to you.
Having gained knowledge or skill from doing something over a long period.
A scientific test carried out to discover something or to check whether an idea is true.
Based on new ideas or methods that are still being tested.
A person with extensive knowledge or skill in a particular field.
Special skill or knowledge in a particular field, gained through experience or training.
To make amends for a wrongdoing.
To make something clear to someone by giving details or reasons.
A statement or account that makes something clear or gives reasons for it.
Stated clearly and in detail, leaving nothing to guesswork.
To burst suddenly and violently, or to increase suddenly and rapidly.
To use something to gain an advantage, or to treat someone unfairly for personal benefit.
The act of traveling through an unfamiliar area to learn about it.
To travel through or examine a place or subject in order to learn more about it.
A sudden, violent burst of energy, often with a loud noise, or a rapid increase in something.
A small number written above and to the right of another number, showing how many times to multiply that number by itself.
The set of rules that describe how to simplify expressions involving powers, such as multiplying or dividing terms with the same base.
Increasing at an extremely fast and constantly accelerating rate.
A decrease in a quantity at a rate proportional to its current value, so it shrinks quickly at first and then more slowly.
An increase in a quantity at a rate proportional to its current value, so growth accelerates over time.
To sell and send goods or services to another country.
To reveal something that was hidden or secret, or to put someone in a situation without protection.
The part of a story that introduces background information, such as characters and setting, usually near the beginning.
The state of being in contact with something, especially something that might affect or harm you.
To show or state a feeling, thought, or opinion through words, actions, or art.
A look on someone's face that shows how they feel, or a phrase used in a particular way.
To legally take property away from its owner, usually by government action, often for public use.
The act of a government or authority taking privately owned property, usually for public use.
To completely remove or erase something, especially from a record.
To remove offensive or unsuitable material from a book or piece of writing.
Spoken or done without preparation.
To make something longer, larger, or to make it last for a longer time.
A metaphor that is developed and continued across several lines, sentences, or an entire piece of writing.
An additional part added to something to make it longer, larger, or to give more time.
Covering a large area, or including a great amount of detail.
The size, scope, or degree of something.
The outer surface or outside part of something.
Coming from or existing outside a person, place, or thing.
No longer existing, especially referring to a species of plant or animal that has died out completely.
The state in which a species no longer exists.
More than what is usual, expected, or needed.
To remove or take something out, often with some effort or a specific method.
Not relevant or necessary to the main subject or purpose.
Very unusual or remarkable, far beyond what is normal or expected.
To estimate or predict something by extending known information or trends.