4
thrum
4
trill(verb, sound, wait, shout, pattern)
4
whine(noun, verb, sound, blow, wait)
3
Al Faran
3
Harkat-ul-Mujahidin
3
Harkat ul-Mujahedeen
3
bustle(noun, verb, sound, rush, commotion)
3
chirrup
3
clatter(noun, verb, rumble)
3
continue the same(expression, idiom)
3
droning
3
falter(irresolution, stammering)
3
growl(noun, sound, utter, flow, babble)
3
hem and haw(expression, idiom)
3
hesitate(irresolution, stammering)
3
hum and haw(expression, idiom)
3
moan(verb, utter, flow, buzz, babble)
3
mumble(noun, verb, hint, utter, buzz)
3
pong(noun, verb, smell, stink, reek)
3
purring
11 years ago|9.3k views|share |citing 
APASmart Define. (2015). hum thesaurus. Retrieved September 20, 2026, from https://smartdefine.org/hum/thesaurus/synonyms
ChicagoSmart Define. 2015. "hum thesaurus" https://smartdefine.org/hum/thesaurus/synonyms (accessed September 20, 2026).
HarvardSmart Define 2015, hum thesaurus, Smart Define, viewed 20 September, 2026, <https://smartdefine.org/hum/thesaurus/synonyms>.
MLASmart Define. "hum thesaurus" 10 April 2015. Web. 20 September 2026. <https://smartdefine.org/hum/thesaurus/synonyms>