1. Verb
To utter words indistinctly or with a low voice and lips partly closed; esp., to utter indistinct complaints or angry expressions; to grumble; to growl.
2. Verb
To sound with a low, rumbling noise.
3. Verb
To utter with imperfect articulations, or with a low voice; as, to mutter threats.
4. Noun
Repressed or obscure utterance.
5. Noun
a complaint uttered in a low and indistinct tone
Vocabulary classified under Linguistics
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