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