WordNet (r) 3.0 (2006):
tweet n 1: a weak chirping sound as of a small bird v 1: make a weak, chirping sound; "the small bird was tweeting in the tree" [syn: tweet, twirp] 2: squeeze tightly between the fingers; "He pinched her behind"; "She squeezed the bottle" [syn: pinch, squeeze, twinge, tweet, nip, twitch]