1. (n.) One who twits, or reproaches; an upbraider.

2. (v. i.) To make a succession of small, tremulous, intermitted noises.

3. (v. i.) To make the sound of a half-suppressed laugh; to titter; to giggle.

4. (v. i.) To have a slight trembling of the nerves; to be excited or agitated.

5. (v. t.) To utter with a twitter.

6. (n.) The act of twittering; a small, tremulous, intermitted noise, as that made by a swallow.

7. (n.) A half-suppressed laugh; a fit of laughter partially restrained; a titter; a giggle.

8. (n.) A slight trembling or agitation of the nerves.