Synonyms of murmur

1 Syllable
hum, speak, sigh, whirr, croons, ning, coo, croon, cooed, purrs, buzz, hums, whoosh, purr, kvetch, whish, tal, ned, cooing
2 Syllables
sounding, drone, buzzed, bubbled, rumble, hummed, mumble, mumbling, crooned, buzzing, mutter, mucked, grumble, whisper, groaning, sighed, mucking, whining, rumor, wheezed, mutters, humming, babbled, groaned, wheeze, sounded, gibbers, whined, spake, whooshed, griping, spoke, jabbers, whooshing, gibber, mumbled, spuming, whispers, jabber, wheezing, babble, snarled, crooning, sighing, snarling, whooshes, voice
3 Syllables
riptide, gibbering, muttering, muttered, crosscurrent, disorient, whispering, repine, jabbered, jabbering, underflow, vocalism, repining
4 Syllables
yakkety-yak, trivializing, undercurrent, trivialized, trivialize, misarrange, undertone, bombilate, jabberwocky, murmuration, misarranged, susurration, divulgence, sibilation