Boo
Boo noun - A vocal sound made to express scorn or disapproval.
Usage example: the referee's questionable call was greeted with a chorus of boos
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Synonyms for Boo
Sneer and boo are semantically related. In some cases you can use "Sneer" instead the word "Boo" as a noun or a verb.
Mutual synonyms
Cite this Source
Sneer and Boo. (2016). Retrieved 2026, July 28, from https://thesaurus.plus/related/boo/sneer
Boo & Sneer. N.p., 2016. Web. 28 Jul. 2026. <https://thesaurus.plus/related/boo/sneer>.
Sneer or Boo. 2016. Accessed July 28, 2026. https://thesaurus.plus/related/boo/sneer.
Google Ngram Viewer shows how "boo" and "sneer" have occurred on timeline