The sound of a chirr.
The sound of a succession of chirps as uttered by birds.
A tremulous broken sound.
Unwanted flicker that occurs in interlaced displays when the image contains vertical detail that approaches the horizontal resolution of the video format.
A slight trembling of the nerves.
To make the sound of a half-suppressed laugh; to titter; to giggle.
To have a slight trembling of the nerves; to be excited or agitated.
To utter a succession of chirps.
(of a person) To talk in an excited or nervous manner.