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  1. grum·ble
    IPA[ˈɡrəmbəl]
  2. verb

    noun

  3. Variation

    • n.: noun: grumble, plural noun: grumbles

    • v.: verb: grumble, 3rd person present: grumbles, gerund or present participle: grumbling, past tense: grumbled, past participle: grumbled

    • verb

      complain about something in a bad-tempered way:

      make a low rumbling sound:

    • noun

      a complaint:

      a low rumbling sound:

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