Grum"ble (?), v. i. [imp. & p. p. Grunbled (?); p. pr. & vb. n. Grumbling (?).] [Cf. LG. grummeln, grumen, D. grommelen, grommen, and F. grommeler, of German origin; cf. W. grwm, murmur, grumble, surly. √35. Cf. Grum, Grim.] 1. To murmur or mutter with discontent; to make ill-natured complaints in a low voice and a surly manner.

L'Avare, not using half his store,
Still grumbles that he has no more.

2. To growl; to snarl in deep tones; as, a lion grumbling over his prey.

3. To rumble; to make a low, harsh, and heavy sound; to mutter; as, the distant thunder grumbles.

Grum"ble, v. t. To express or utter with grumbling.

Grum"ble, n. 1. The noise of one that grumbles.

2. A grumbling, discontented disposition.

A bad case of grumble.

• (onomatopoeia) a low thundering, rumbling, or growling sound
  
• the sound made by a hungry stomach
  
• a complaint
       That whiner is never without a grumble to share.
  
• to make a low growling or rumbling noise
  
• to complain
       He grumbles about the food constantly, but has yet to learn to cook.