(UK, Navy) A warrant officer or chief petty officer responsible for discipline aboard a naval ship.

(military, usually as imperative) To carry one's personal firearm diagonally in front of the body.

(military) The position of a weapon carried diagonally in front of the body.

plural of spiral arm

plural of arms race

comrade in arms (fellow combatant or soldier)

plural of brother-in-arms

plural of tone arm

One of the three chief heralds of the College of Arms, designated as Garter (Principal King of Arms), Clarenceux (for England south of the Trent and Wales), and Norroy & Ulster (for England north of the Trent and Northern Ireland).

plural of sword arm