Difference between Grumbling and Grumble

Grumbling

Part of speech: verb

Definition: To make a low, growling or rumbling noise, like a hungry stomach or certain animals.

Part of speech: noun

Definition: Complaining. Rumbling.

Example sentence: Him, who incessantly laughs in the street, you may commonly hear grumbling in his closet.

Grumble

Part of speech: verb

Definition: To make a low, growling or rumbling noise, like a hungry stomach or certain animals.To complain.To utter in a grumbling fashion.

Part of speech: noun

Definition: A low thundering, rumbling or growling soundThe sound made by a hungry stomachA complaint