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.
Any bird that whistles or is noted for its whistling vocalisations (applied regionally to various specific species).
The mountain beaver (Aplodontia rufa).
The goldeneye (certain ducks of genus Bucephala).
The whistling marmot (Marmota caligata).
Someone or something that whistles, or who plays a whistle as a musical instrument.
An audio-frequency electromagnetic wave produced by atmospheric disturbances such as lightning.
A broken-winded horse.
Any of several passerine birds of the genera Pachycephala and Coracornis, of Australasia and the western Pacific.