The upper limb of the human body, or the part of the upper limb between the shoulder and the wrist. Also spec. (Anatomy): the part of the upper limb…

spec. The arm, the calf of the leg, the buttock.

The entire arm, from the shoulder to the tips of the fingers. In early use more fully †great hand. Now Caribbean.

transferred. poetic. The human arm (or hand). rare.

the arm used in holding a horse's reins; compare bridle hand n.

the left arm (cf. shield-hand n.).

slang. An arm. Obsolete.

the arm with which the sword is wielded, the right arm; also rhetorically = military power or action, and figurative.

Something resembling a fish's fin. jocularly. The arm and hand (of a man), or simply the hand.

the arm with which a person uses a pistol.

the arm used in holding the hand-grip of a spade.

The human arm. humorous. Obsolete. rare.

the right wing of a fowl, etc., which, when dressed for cooking, has the liver tucked under it; (hence humorously) the right arm of a person.

the arm that holds the bow (in archery or in violin-playing).

colloquial. An arm; a hand, esp. one which is large and clumsy. Frequently in plural.

U.S. slang. In plural. The arms, esp. muscular arms; the biceps.