murmur Synonyms

grumbling gnarl croak murmuration mutter muttering murmuring grumble purring speke sound stammer stutter suspiration suspire susurration susurrus sough sigh purl purling purr rap rustle repine ripple rumble rumbling rustling sibilate sighing thrum thrumming grouch whirr burbling cardiac murmur heart murmur mussitate murmur vowel schwa susurrate soughing riptide throated whispers backblast burble tweedle undercurrent