"activities" in the noun sense
1. activity
any specific behavior
"they avoided all recreational activity"
2. action, activity, activeness
the state of being active
"his sphere of activity"
"he is out of action"
3. bodily process, body process, bodily function, activity
an organic process that takes place in the body
"respiratory activity"
4. activity
chemistry) the capacity of a substance to take part in a chemical reaction
"catalytic activity"
5. natural process, natural action, action, activity
a process existing in or produced by nature (rather than by the intent of human beings
"the action of natural forces"
"volcanic activity"
6. activeness, activity
the trait of being active moving or acting rapidly and energetically
"the level of activity declines with age"
Source: WordNet® (An amazing lexical database of English)
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