activity (EN)

noun

noun “activity”

1. an action or task that someone does
   Sign up to see the translation of definitions and examples into any language.

   Reading is an activity she enjoys every evening.
2. the state of being active; when things are happening
   The office was buzzing with activity after the big announcement.
3. something done for pleasure or entertainment
   The playground offers a variety of activities to children.
4. (physics) the rate at which a radioactive substance decays
   The scientist measured the activity of the radioactive sample.
5. (chemistry) how reactive a substance is
   The chemical's activity determines how it will interact with other substances.