44 entries under noun topic. ×

8
mumble
7
whispering(verb, adjective, quiet)
5
murmuring
4
gumming
3
murmur
2
drone
2
droning
2
humming
2
murmuration
2
rumbling
2
susurration
2
susurrus
2
undertone
1
enunciation
1
rumble
0
articulation
0
background noise
0
background sound
0
buzz
0
buzzing
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APASmart Define. (2015). mumbling thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/mumbling/thesaurus/synonyms
ChicagoSmart Define. 2015. "mumbling thesaurus" https://smartdefine.org/mumbling/thesaurus/synonyms (accessed September 25, 2026).
HarvardSmart Define 2015, mumbling thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/mumbling/thesaurus/synonyms>.
MLASmart Define. "mumbling thesaurus" 13 April 2015. Web. 25 September 2026. <https://smartdefine.org/mumbling/thesaurus/synonyms>