- 1[uncountable] a situation in which something is happening or a lot of things are being done economic activity The streets were noisy and full of activity. Muscles contract and relax during physical activity. compare inactivity
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- 2[countable, usually plural] a thing that you do for interest or pleasure, or in order to achieve a particular aim leisure/outdoor/classroom activities The club provides a wide variety of activities including tennis, swimming, and squash. illegal/criminal activities Idioms
a place full of people who are busy
Check pronunciation: activity