#1 flicker v. [waver, flitter, flutter, quiver] move back and forth very rapidly; "the candle flickered". wn
#2 flicker n. [spark, glint] a momentary flash of light. wn
#3 flicker n. North American woodpecker. wn
#4 flicker v. [flick] shine unsteadily; "The candle flickered". wn
#5 flicker n. [waver, flutter] the act of moving back and forth. wn
vizzz