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English to English noun
| 1 |
a soft indistinct utterance |  | source: wordnet30
verb
| 2 |
talk indistinctly; usually in a low voice | | source: wordnet30
| 3 |
grind with the gums; chew without teeth and with great difficulty | | Example: the old man had no teeth left and mumbled his food
source: wordnet30
| 4 |
To speak with the lips partly closed, so as to render the sounds inarticulate and imperfect; to utter words in a grumbling indistinct manner, indicating discontent or displeasure; to mutter. | | source: webster1913
| 5 |
To utter with a low, inarticulate voice. | | source: webster1913
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