Something done for pleasure or entertainment, especially one involving movement or an excursion.
The lexical aspect (aktionsart) of verbs or predicates that change over time and have no natural end point.
Something done as an action or a movement.
The state or quality of being active; activeness.
The number of radioactive decays per unit time. Unit for it: becquerel or curie
The propery of substances to react with other substances
Something that motivates, rouses, or encourages.
A bonus or reward, often monetary, to work harder.
Inciting; encouraging or moving; rousing to action; stimulating.
Serving to kindle or set on fire.