Definition of twitter

• n. - One who twits, or reproaches; an upbraider.
• v. i. - To make a succession of small, tremulous, intermitted noises.
• v. i. - To make the sound of a half-suppressed laugh; to titter; to giggle.
• v. i. - To have a slight trembling of the nerves; to be excited or agitated.
• v. t. - To utter with a twitter.
• n. - The act of twittering; a small, tremulous, intermitted noise, as that made by a swallow.
• n. - A half-suppressed laugh; a fit of laughter partially restrained; a titter; a giggle.
• n. - A slight trembling or agitation of the nerves.