I. verb
1.
Synonyms: mumble , ||chunter, fumble, muddle, ||mump, murmur, swallow
2.
Synonyms: grumble 1, croak, grouch, grouse, ||grunt, murmur, scold
Related Word: repine, wail
II. noun
Synonyms: murmur 1, mumble, rumor, susurration, undertone, whisper