BOO Synonyms: 57 Similar and Opposite Words

boo 1 of 2

noun

Definition of boo

as in snort

a vocal sound made to express scorn or disapproval the referee's questionable call was greeted with a chorus of boos

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boo

2 of 2

verb

as in to jeer

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Example Sentences

Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.

Recent Examples of boo

Noun

Those boos gave way to cheers when the Red Sox played a 90-second tribute video after the bottom of the first. — Justice Delos Santos, Mercury News, 22 Aug. 2026 The boos were more scattered and barely audible amidst the applause and cheers, which grew louder when the ballpark’s video boards showed the 2018 champ smiling, clapping, and waving from the visitors’ dugout. — Gabrielle Starr, Boston Herald, 21 Aug. 2026

Verb

This graduation season, tech leaders who invoke AI optimism in their commencement speeches are getting booed by classes entering the workforce with anxieties about what AI could mean for their job prospects. — Emma Bowman, NPR, 19 June 2026 Both the England and Croatia fans boo as the referee blows for the hydration breaks. — Charles Baggarly, Fort Worth Star-Telegram, 18 June 2026 See All Example Sentences for boo

Recent Examples of Synonyms for boo

Noun

The class had been quiet after the camp text, but now there was at least one snort.

— Literary Hub, Literary Hub, 10 July 2026
The Rodents of Unusual Size that attack Westley in a swamp work because they are played by small men in rodent suits, rather than coolly conjured from pixels; their deliberate artifice is the thrill, and Reiner provided the voice for their hideous snorts.

— Alexandra Schwartz, New Yorker, 17 Dec. 2025

Definition of snort

Verb

When the visitors' lineup and Skubal were shown on the videoboard and his name was announced before the first pitch, most of the crowd at Comerica Park clapped for the two-time Cy Young Award winner while some jeered him.

— ABC News, ABC News, 28 Aug. 2026
Once a lawyerly panel, a takeover by a trio of conservatives deeply mistrustful of the state’s voting system has turned the board’s once mundane meetings into boisterous events packed with crowds of cheering and jeering activists.

— Tamar Hallerman, AJC.com, 3 Aug. 2026

Definition of jeer

Verb

But delivering that level of craft in a high-octane room where the hissing espresso machine competes with the bassline?

— Carly Boers, Chicago Tribune, 18 Aug. 2026
And in 2022, Japanese researchers turned a Madagascar hissing cockroach into a cyborg for search-and-rescue missions using a similar, though more sophisticated, approach.

— ArsTechnica, ArsTechnica, 3 Aug. 2026

Definition of hiss

Noun

Orion gave a smirk and thumbs up to the camera while Keats made a funny face and stuck his tongue out.

— Kayla Grant, PEOPLE, 19 Aug. 2026
His trademark smirk and knowing stare are now feared by any opponent up against Norway, but don’t be fooled into thinking Haaland isn’t serious about his career.

— Ben Church, CNN Money, 11 July 2026

Definition of smirk

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Style

“Boo.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/boo. Accessed 31 Aug. 2026.

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Synonyms of boo

noun

verb

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