n.
activity
act
1) to initiate; take action; to go into action
2) to put smt. into action (we put our plan into action)
3) to prod, spur smb. into action
4) concerted, united; decisive; direct; disciplinary; drastic; emergency; hasty, rash; immediate, prompt; remedial; vigorous action (we must take immediate action)
5) (AE) affirmative action ('giving preference to members of minority groups')
6) industrial (BE), (a) job (AE) action ('a protest by workers')
7) congressional; political action
8) a reflex action
combat; military or police activity
9) to go into action
10) to see action ('to participate in combat')
11) to break off action
12) to take evasive action ('to maneuver in order to escape enemy fire')
13) enemy action; a delaying, holding; police; punitive; rearguard action
14) in action (killed in action)
15) out of action (two tanks were put out of action)
lawsuit
16) to bring, institute, take action against smb. for smt. (he brought legal action against his neighbor)
17) to dismiss an action (the judge dismissed the action)
18) a civil; class; legal action
initiative
enterprise
19) a man, woman of action
plot of a play, novel
20) the action drags; picks up (the action picks up in the third act)
misc.
21) (colloq.) a piece of the action ('participation in an activity') (he wants a piece of the action)