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

The man tried to continue speaking, but his words were largely drowned out by the crowd before the audience erupted into a chorus of boos. — Brianna Zigler, Entertainment Weekly, 11 Aug. 2026 In May, college graduates entering a workforce where the technology is the primary reason for job cuts met commencement speakers hailing the AI revolution—including former Google CEO Eric Schmidt at the University of Arizona—with boos. — Jason Dressel, Fortune, 10 Aug. 2026

Verb

Both the England and Croatia fans boo as the referee blows for the hydration breaks. — Charles Baggarly, Fort Worth Star-Telegram, 18 June 2026 Some groups have even been known to boo the national anthem. — Dan Greene, New Yorker, 12 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

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
As the clock ticked down, fans began to jeer the referee after foul calls.

— Christian Marshall, Kansas City Star, 4 July 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

Orlando Bloom flashes a shirtless smirk while on vacation in Marmi, Italy on July 26.

— Stephanie Sengwe, PEOPLE, 29 July 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 22 Aug. 2026.

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Synonyms of boo

noun

verb

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