Twitter | Webster's Dictionary (1865)

Twit'ter, v. t.

verbtransitive

v. t. [imp. & p. p. TWITTERED; p. pr. & vb. n. TWITTERING.] [N. H. Ger. zwitschern, zwitzern, O. H. Ger. zwizōrōn, D. kwetteren, Sw. qvittra, Dan. quiddre. Cf. TITTER.] 1. To make a succession of small, tremulous, intermitted noises. The swallow, twittering from his straw-built shed. Gray.

To have a slight trembling of the nerves; to be excited or agitated.
To make the sound of a half-suppressed laugh; to titter; to giggle. Beau. & Fl.

Twit'ter, n.

noun

n. [From twit.] One who twits, or reproaches.

Twĭt'ter, n.

noun

n. 1. A small, tremulous, intermitted noise, as that made by a swallow or other singing-bird.

A slight trembling or agitation of the nerves.
A half-suppressed laugh; a fit of laughter but partially restrained; a titter; a giggle.