- 1
The state or quality of being active; activeness.uncountable
- Pit row was abuzz with activity.
- For quotations using this term, see Citations:activity.
- 2
Something done as an action or a movement.countable
- The activity for the morning was a walk to the store.
- 3
Something done for pleasure or entertainment, especially one involving movement or an excursion.countable
- An increasing number of sports activities are on offer at the university.
- Quilting can be an enjoyable activity.
- 4
The lexical aspect (aktionsart) of verbs or predicates that change over time and have no natural end point.countableuncountable
- […]distinctions among states of affairs are reflected to a striking degree in distinctions among Aktionsart types. That is, situations are expressed by state verbs or predicates, events by achievement verbs or predicates, and actions by act
- 5
The number of radioactive decays per unit time. Unit for it: becquerel or curiecountableuncountable
- 6
The property of substances to react with other substancescountableuncountable
syn. activity · doings · endeavor · enterprise · pursuance · pursuit · undertaking · venture
ant. rest · passivity