Definition of grumble

Definition of grumble
  1. grumble Noun A low thundering, rumbling or growling sound
  2. grumble Noun The sound made by a hungry stomach
  3. grumble Noun A complaint
  4. grumble Verb To make a low, growling or rumbling noise, like a hungry stomach or certain animals.
  5. grumble Verb To complain.
  6. grumble Verb To utter in a grumbling fashion.
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