Entry 8 senses · 4 variants Webster, 1913 Twitter /twĭt'ər/ · Twit·ter · IPA /ˈtwɪtəɹ/ n. v. i. v. t. n. 01 n. One who twits, or reproaches; an upbraider. 1. One who twits, or reproaches; an upbraider. 02 v. i. To make a succession of small, tremulous, intermitted noises. imp. & p. p. Twittered; p. pr. & vb. n. Twittering 1. To make a succession of small, tremulous, intermitted noises. “The swallow twittering from the straw-built shed.” — Gray. 2. To make the sound of a half-suppressed laugh; to titter; to giggle. 3. To have a slight trembling of the nerves; to be excited or agitated. 03 v. t. To utter with a twitter. 1. To utter with a twitter. 04 n. The act of twittering; a small, tremulous, intermitted noise, as that made by a swallow. 1. The act of twittering; a small, tremulous, intermitted noise, as that made by a swallow. 2. A half-suppressed laugh; a fit of laughter partially restrained; a titter; a giggle. 3. A slight trembling or agitation of the nerves.