9 entries under drone topic. ×

11
hiss(verb, sound, blow, mock, utter)
2
murmur(utter, hum, sigh)
2
whine
2
whir(verb, hum)
0
bombinate
0
bumble
0
hum
0
reverberate
0
ring
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APASmart Define. (2015). sibilate thesaurus. Retrieved September 28, 2026, from https://smartdefine.org/sibilate/thesaurus/synonyms
ChicagoSmart Define. 2015. "sibilate thesaurus" https://smartdefine.org/sibilate/thesaurus/synonyms (accessed September 28, 2026).
HarvardSmart Define 2015, sibilate thesaurus, Smart Define, viewed 28 September, 2026, <https://smartdefine.org/sibilate/thesaurus/synonyms>.
MLASmart Define. "sibilate thesaurus" 10 April 2015. Web. 28 September 2026. <https://smartdefine.org/sibilate/thesaurus/synonyms>