| Noun | 1. | flicker - a momentary flash of lightflash - a sudden intense burst of radiant energy | |
| 2. | flicker - North American woodpeckerpeckerwood, woodpecker, pecker - bird with strong claws and a stiff tail adapted for climbing and a hard chisel-like bill for boring into wood for insects | |
| 3. | flicker - the act of moving back and forthmovement, motility, motion, move - a change of position that does not entail a change of location; "the reflex motion of his eyebrows revealed his surprise"; "movement is a sign of life"; "an impatient move of his hand"; "gastrointestinal motility" | |
| Verb | 1. | flicker - move back and forth very rapidly; "the candle flickered" | |
| 2. | flicker - shine unsteadily; "The candle flickered"beam, shine - emit light; be bright, as of the sun or a light; "The sun shone bright that day"; "The fire beamed on their faces" | |
| 3. | flicker - flash intermittently; "The lights flicked on and off" | |