A group of people joined temporarily to accomplish some task or take part in some organised collective action. / (US military) A component of a naval task force.

(chiefly military) The designation for a member of an organization (usually military) with whom contact is lost and whose whereabouts are not known, but whose death is not confirmed.

(law) In the United States, a lawsuit between private parties, including an action by a private person against a government entity, which will be treated as a private party by the court.

A film, novel, television series or video game characterized by action, intrigue, and sometimes violence.

(law, chiefly US, Canada) A lawsuit brought by a single plaintiff or small group of plaintiffs as a representative of a large group of others having a common interest, with everyone in the large group eligible to receive damages if the plaintiff is successful.

(physics) The drawing of a liquid (often against gravity) into or up narrow interstices due to surface tension

An attack designed to prevent an enemy from attacking, or from moving its position

A plan; a set of intended actions, through which one intends to achieve a goal.

plural of course of action

(military) A tactical subdivision of a larger area, the responsibility for which is assigned to a tactical unit; generally applied to offensive action.