Open English Wordnet
Nouns
(n)waversomeone who communicates by waving Verbs
(v)hesitate, waver, wafflepause or hold back in uncertainty or unwillingness“Authorities hesitate to quote exact figures” (v)falter, waverbe unsure or weak“Their enthusiasm is faltering” (v)falter, wavermove hesitatingly, as if about to give way (v)fluctuate, vacillate, wavermove or sway in a rising and falling or wavelike pattern“the line on the monitor vacillated” (v)quaver, wavergive off unsteady sounds, alternating in amplitude or frequency