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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There were cartoons while dressing children, evening news while cooking dinner, and, before bed, families watched mutely as onscreen families laughed and talked.—
Molly Fischer,
New Yorker,
15 June 2026 -
Sehic said there were many people at the restaurant at the time, and said Campbell was talking to someone else at the bar when he was approached by Harakh.—
Neal Riley,
CBS News,
15 June 2026
Verb
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Further up Lake Street, there are signs of a slow recovery at the Plaza Mexico, with customers sitting at tables that were deserted during the winter.—
Conor Wight,
CBS News,
10 June 2026
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Korda managed to keep it together when her swing, which felt so pure in the practice rounds, deserted her in an opening round of 73 that left her seven shots behind.—
ABC News,
ABC News,
8 June 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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On the internet and in Parsons’s work, the backrooms are primarily business, retail, or other spaces meant for a specific use that, when abandoned, evoke a kind of uncertainty and fear.—
Roxana Hadadi,
Vulture,
12 June 2026
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This doesn't mean artists need to abandon short-form content or playlists.—
Sam Saideman,
Forbes.com,
12 June 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 16 Jun. 2026.
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