flicker

nouns

a momentary flash of light
flicker, glint, spark
North American woodpecker
flicker
is a member of
a genus of Picidae
Colaptes, genus Colaptes
is a type of (narrower)
bird with strong claws and a stiff tail adapted for climbing and a hard chisel-like bill for boring into wood for insects
pecker, peckerwood, woodpecker
the act of moving back and forth
flicker, flutter, waver

verbs

move back and forth very rapidly
"the candle flickered"
flicker, flitter, flutter, quiver, waver
shine unsteadily
"The candle flickered"
flick, flicker
flash intermittently
"The lights flicked on and off"
flick, flicker