Full of action; dramatic and exciting.

(euphemistic, of a military serviceperson) Killed during military combat. / (of military equipment, resources, etc.) Destroyed during military combat.

(military, Britain, Canada) The positions or activity assumed by the crew of a warship immediately in advance of combat or other hostile action; general quarters; also, the signal given to indicate such imminent action.

plural of action man

plural of industrial action

(group theory) A mapping of a mathematical group to the permutations of an object that is compatible with the group operation.

plural of affirmative action

The hero of a work of fiction containing action, whose heroism typically includes participation in that action.

(slang) To succeed at seducing another person into sexual activity.

plural of action potential