Synonyms/Hypernyms (Ordered by Estimated Frequency) of noun flail

1 sense of flail

Sense 1
flail -- (an implement consisting of handle with a free swinging stick at the end; used in manual threshing)
       => implement -- (instrumentation (a piece of equipment or tool) used to effect an end)

Synonyms/Hypernyms (Ordered by Estimated Frequency) of verb flail

2 senses of flail

Sense 1
thrash, thresh, lam, flail -- (give a thrashing to; beat hard)
       => beat, beat up, work over -- (give a beating to; subject to a beating, either as a punishment or as an act of aggression; "Thugs beat him up when he walked down the street late at night"; "The teacher used to beat the students")

Sense 2
flail, thresh -- (move like a flail; thresh about; "Her arms were flailing")
       => beat, flap -- (move with a flapping motion; "The bird's wings were flapping")