1
[ noun ] a loud low dull continuous noise

Examples

"they heard the rumbling of thunder"

2
[ noun ] a complaint uttered in a low and indistinct tone

Related terms

complaint murmur

3
[ adjective ] continuous full and low-pitched throbbing sound

Synonyms

rumbling

Examples

"the rumbling rolling sound of thunder"

Related terms

full

4
[ adjective ] muttering discontentedly

Examples

"the grumbling boarders requested a meeting with the cook"

Related terms

complaining

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