- action
- ac•tion[[t]ˈæk ʃən[/t]] n.1) the process or state of acting or functioning; the state of being active:We saw the team in action[/ex]2) something done or performed; act; deed3) a consciously willed act or activity4) practical, often organized activity undertaken to deal with or accomplish something:a crisis that requires immediate action[/ex]5) actions, habitual or usual acts; conduct6) energetic activity:a man of action[/ex]7) an exertion of power or force:the erosive action of wind[/ex]8) effect or influence:the action of morphine[/ex]9) a change in organs, tissues, or cells leading to performance of a function, as in muscular contraction10) way or manner of moving:the action of a horse[/ex]11) the mechanism by which something is operated, as that of a gun or a piano12) mil a military encounter, as a battle or skirmish13) mil actual combat with enemy forces14) lit. the main subject or story line of a literary or dramatic work15)a) lit. an event or series of events that form part of a dramatic plotb) lit. one of the three dramatic unitiesCompare unity 8)c) sbz (used as a command by a motion-picture director to begin the performance of a scene for filming)16) sbz the gestures or deportment of an actor or speaker17) law a legal proceeding instituted by one party against another18) cvb sts Slang.a) interesting or exciting activity, sometimes of an illicit natureb) gambling activity•Etymology: 1300–50; < L āctiō=ag(ere) to drive, do, act+-tiō -tion ac′tion•less, adj.
From formal English to slang. 2014.