To emit a low sound; to warble.
A kind of musical warble.
To burn or shine unsteadily, or with a wavering light.
To flutter or flap.
To keep going on and off; to appear and disappear for short moments; to flutter.
Any of certain small woodpeckers, especially of the genus Colaptes.
One who flicks.
An unsteady flash of light.
A short moment.