I
n.
upper limb
1) to bend; cross; fold; lower; raise; stretch; swing; wave one's arms
2) (misc.) to take smb. by the arm; to fling/put/throw one's arms around smb.; to carry smt. under one's arm; to greet smb. with open/outstretched arms; to walk arm in arm with; with arms akimbo
power
3) the long arm of the law
division
4) our naval air arm
attachment
5) a pickup, tone arm
misc.
6) to twist smb.'s arm ('to exert pressure on smb.')
II
v. (D; intr., refl., tr.) to arm against (to arm against a potential enemy)