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May 19, 2026 · The meaning of ACTIVITY is the quality or state of being active : behavior or actions of a particular kind. How to use activity in a sentence.

ACTIVITY meaning: 1. the situation in which a lot of things are happening or people are moving around: 2. the work…. Learn more.

Apr 19, 2026 · Noun activity (countable and uncountable, plural activities) (uncountable) The state or quality of being active; activeness.

Definition of activity noun in Oxford Advanced Learner's Dictionary. Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more.

activity 1. A unit, organization, or installation performing a function or mission, e.g., reception center, redistribution center, naval station, naval shipyard. 2. A function, mission, action, or collection of …

Activity definition: The state of being active.

ac•tiv•i•ty (ak tiv′ i tē), n., pl. -ties. the state or quality of being active: There was not much activity in the stock market today. He doesn't have enough physical activity in his life. a specific deed, action, …

activity, n. meanings, etymology, pronunciation and more in the Oxford English Dictionary

An activity is something you do, or just the state of doing. You might plan some indoor activities for a rainy day, or you might just rely on watching your gerbils' activity in their cage.