(intransitive, military) Of a soldier at drill, to place a rifle on the right shoulder, with the forearm parallel to the ground and the hand holding the butt.

A competition for military supremacy between two powers, especially for the most weapons and the best military technology. / (figuratively) Any similar competition that involves competing developments.

(historical) A heavily-armed mounted member of medieval cavalry.

plural of coat of arms

plural of long arm

(slang, UK) An individual who steals things or borrows them without asking.

plural of sergeant-at-arms

A person charged with keeping order at a meeting.

Third-person singular simple present indicative form of straight-arm

Third-person singular simple present indicative form of straight arm