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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One of the real pleasures of doing the book was talking to the ex-Panthers and the other ‘60s and ‘70s activists who, at this stage of their life, are very eager to have their stories put down.—
Michael Schaub,
Oc Register,
19 June 2025
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In its unveiling, Google showcased cinematic-level video sequences, including a scene of an old man on a boat and another showing Pixar-like animals talking with one another.—
Zach Vallese,
CNBC,
19 June 2025
Verb
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In response, Congress passed legislation seeking to limit a president's ability to wage war against Iran, which was again quickly rejected by Trump.—
Mariam Khan,
ABC News,
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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However, not all states have the same laws, so in most joint legal custody arrangements, both parents must be informed of and agree to major medical and mental health decisions.—
Sherri Gordon,
Parents,
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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While families may choose various savings tools, abandoning Florida’s institutions over political disagreements undermines the progress made by thousands of dedicated students, faculty and staff.—
Sun Sentinel Editorial Board,
Sun Sentinel,
21 June 2025
Verb
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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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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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Cite this Entry
“Rat (on).” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/rat%20%28on%29. Accessed 1 Jul. 2025.
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