Hum
Hum noun - A monotonous sound like that of an insect in motion.
Mutual synonyms
Common collocations
Both words in one sentence
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The first half of Crystal Ball is even worse in that regard: "Holy Lord (???) I can't decide and I humum-mumble-hum..."note Holding on and I can't decide / And I can't decide on him / Holding on and I can't seem to / Can't seem to, oh, begin
Cite this Source
Mumble and Hum. (2016). Retrieved 2026, August 15, from https://thesaurus.plus/related/hum/mumble
Hum & Mumble. N.p., 2016. Web. 15 Aug. 2026. <https://thesaurus.plus/related/hum/mumble>.
Mumble or Hum. 2016. Accessed August 15, 2026. https://thesaurus.plus/related/hum/mumble.
Google Ngram Viewer shows how "hum" and "mumble" have occurred on timeline