1
as in to split (on)
to give information (as to the authorities) about another's improper or unlawful activities
how much—or how little—did the fuzz have to pay you to rat on us?
Synonyms & Similar Words
Relevance
2
as in to desert
to leave (a cause or party) often in order to take up another
many party operatives ratted on the senator's candidacy once her poll numbers started to slip
Synonyms & Similar Words
Antonyms & Near Antonyms
Example Sentences
Recent Examples of Synonyms for rat (on)
Verb
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Paul DiPierro and Scott Ostrander, owners of adjacent restaurant Origami Asian Grill, encouraged Pruner to talk to the landlord when the space vacated.—
Sean Timberlake,
Sacbee.com,
9 June 2026 -
My mother opens the balcony door and starts hanging up underpants, talking to the guests with her back to them.—
Literary Hub,
Literary Hub,
8 June 2026
Verb
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Lebanon’s economy began to collapse in 2019, causing salaries to plummet; many enlistees were forced to take second jobs, and others to desert altogether.—
Euan Ward,
New Yorker,
29 May 2026
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In the last decade, young audiences coveted by advertisers have deserted late night TV shows for streaming channels.—
Joe Battenfeld,
Boston Herald,
28 May 2026
Verb
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Later Tuesday, Loboa sent an email to the DU community informing them about the academic realignment, a message that listed data and documents used to make the restructuring decisions.—
Elizabeth Hernandez,
Denver Post,
9 June 2026
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Employees who work at the New Labor Agency Building, at O and 9th streets, were also sent memos informing them that the building does not have sufficient space to accommodate all employees in offices four days a week.—
William Melhado,
Sacbee.com,
9 June 2026
Verb
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At the same time, the resolution calls for humane immigration policies that uphold justice and mercy, strongly rejecting nativism, discrimination and racial or ethnic hostility.—
Marc Ramirez,
USA Today,
10 June 2026
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As of last month, according to Yahoo Sports, more than $125 million worth of NIL compensation that had been promised to athletes had been rejected by the clearinghouse or was still under review.—
Ryan Kartje,
Los Angeles Times,
10 June 2026
Verb
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Kuna fires out, abandoned home burns Smoke poured out of two fires in Kuna on Thursday, said James Trumble, the Kuna Rural Fire District’s assistant chief.—
Idaho Statesman,
Idaho Statesman,
29 May 2026
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And then there’s the fact that in the season finale’s final minutes, set in 2020, the Soviet spaceship MAPC-94, abandoned in space after its engines failed decades ago, turns itself on.—
Roxana Hadadi,
Vulture,
29 May 2026
Verb
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Not only was the Plaza33 party called off in coordination with the Secret Service, but a secure area was established around the ten-block radius surrounding the arena, cutting off foot and car traffic in one of the most hectic stretches of midtown Manhattan.—
Dan Adler,
Vanity Fair,
9 June 2026
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The gas can no longer cool fast enough to fall in and the galaxy is suddenly cut off from its fuel supply.—
Paul Sutter,
Space.com,
9 June 2026
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Cite this Entry
“Rat (on).” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/rat%20%28on%29. Accessed 11 Jun. 2026.
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