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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Council’s offense deserted him in his second season. 2025 draft picks: third, 35th Draft need: The Sixers needed a power forward all season.—
Law Murray,
New York Times,
22 June 2025 -
Never desert a blaze: Avoid abandoning any fire without supervision.—
CA Weather Bot,
Sacbee.com,
20 June 2025
Verb
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Sucked underground by an explosive whirlwind, DK must team up with a talking mineral named Odd Rock to prevent VoidCo from reaching the planet’s core, where legend says something has the power to grant wishes.—
Christopher Cruz,
Rolling Stone,
1 July 2025
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Here to talk more about this is Tax Notes investigations editor Lauren Loricchio.—
Tax Notes Staff,
Forbes.com,
1 July 2025
Verb
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This can manifest into an AI tool that ends up rejecting qualified job candidates because it was trained on biased data.—
Janice Gassam Asare,
Forbes.com,
23 June 2025
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That kind of backlash prompted officials in La Mesa, Oceanside, Vista and Carlsbad to reject digital billboard proposals.—
David Garrick,
San Diego Union-Tribune,
23 June 2025
Verb
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There is no need to inform domains about their sluggish new competition.—
Michael Gargiulo,
Forbes.com,
23 June 2025
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Officials pledged to inform the public through official channels as the situation evolves.—
Amanda Castro
Hannah Parry
Shane Croucher,
MSNBC Newsweek,
23 June 2025
Verb
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To add insult to injury, Pfizer abandoned its plan just a few years after the Kelo decision, just as its tax breaks were about to expire and after about $80 million of taxpayer money was spent, and the land remains a vacant lot all these years later.—
The Editorial Board,
Oc Register,
22 June 2025
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Another noted that the Post tried to become a national rival to The New York Times and failed — abandoning its identity as a regional and D.C. insider paper in the process.—
Andy Meek,
Forbes.com,
21 June 2025
Verb
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When opponents control the midfield, press high and cut off those vertical routes, Iceland struggles to progress the ball or retain meaningful possession.—
Asli Pelit,
New York Times,
22 June 2025
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Iran may retaliate against U.S. forces in the region, cut off a global oil supply route or try to accelerate its nuclear program.—
Jasmine Laws,
MSNBC Newsweek,
22 June 2025
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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 6 Jul. 2025.
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