Before an action takes place, especially a legal action.

Offensive and hostile action carried out by an enemy country's military forces, especially during a war.

(transitive) Synonym of put into practice

(of a report, analysis, etc.) Written retrospectively on a given sequence of goal-oriented actions previously taken, especially if by the author himself.

To begin doing something or become active suddenly and very quickly.

to begin doing something or become active suddenly and very quickly.

Military action undertaken without a formal declaration of war.

Synonym of action plan

Legal proceedings; a lawsuit.

Physical movement performed in order to avoid a collision with something (such as a vehicle or missile).