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 -
Emanuel and White served as VIP shepherds at times, bringing dignitaries over to talk to Trump when the action was quiet in the octagon, and commercials were rolling for viewers on TV.—
Alex Weprin,
HollywoodReporter,
15 June 2026
Verb
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Zoppo-Sassu was a city council member at the time, and vividly recalls how the failing mall was largely deserted, casting a pall over all of downtown.—
Don Stacom,
Hartford Courant,
10 June 2026
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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
Verb
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But another four or five weeks of games can inform Weiss and Anthopoulos’ own answer.—
Ken Sugiura,
AJC.com,
16 June 2026
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McGregor Scott, Williamson’s attorney, said he had not been informed of any other investigations involving his client.—
Lia Russell,
Sacbee.com,
16 June 2026
Verb
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Israel’s request to see the text was rejected by the US, an Israeli source told CNN.—
Kevin Liptak,
CNN Money,
17 June 2026
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The legal case, decided at an emergency hearing in a Los Angeles courthouse on Monday morning, was brought by an Iranian fan who said FIFA’s block impinged freedom of speech, but the judge rejected that argument.—
Henry Bushnell,
New York Times,
16 June 2026
Verb
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In 2018, Business Insider reported that the iconic 300,000-square-foot Lisa Frank factory in Tucson was abandoned and for sale for $17 million.—
Emily Blackwood,
PEOPLE,
11 Dec. 2025
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By 1624, however, it was largely abandoned, and Gothenburg began to rise in its place.—
Andrea Margolis,
FOXNews.com,
11 Dec. 2025
Verb
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Experts warn other delivery platforms and foreign companies, including a major Spanish hotel chain already downsizing, may retreat from Cuba, cutting off lifelines for families amid shortages and blackouts.—
Gisela Salomon,
Los Angeles Times,
16 June 2026
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Throughout the episode, Whoopi Goldberg struggled to cut to commercial break, repeatedly having to cut off her co-hosts in heated interactions with the vice president.—
Ethan Shanfeld,
Variety,
16 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 18 Jun. 2026.
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