1
as in splits (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 defects (from)
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 rats (on)
Verb
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And no one talks much about that.—
Teri Sforza,
Oc Register,
4 Feb. 2026 -
Kennedy, who is in long-term recovery from addiction to alcohol and heroin, talks frequently about his own struggles with substance use.—
Lev Facher,
STAT,
2 Feb. 2026
Verb
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Sean, 17, deserts his post in the midst of the Iraq war and returns to England.—
Melanie Goodfellow,
Deadline,
5 Dec. 2025
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Based on the graphic novel of the same name by Isabel Greenberg, the upcoming adaptation follows a young bride named Cherry (scream queen Maika Monroe), whose husband (Amir El-Masry) deserts her in the care of the sexy Manfred (Nicholas Galitzine) and her maid, Hero (Emma Corrin).—
Jason P. Frank,
Vulture,
3 Nov. 2025
Verb
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But Balzano rejects the idea that fast development automatically conflicts with automotive reliability.—
Malana VanTyler,
USA Today,
11 Feb. 2026
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Gentry rejects the notion that there are more Hancevilles out there, their scandals hidden for now.—
Rob Picheta,
CNN Money,
7 Feb. 2026
Verb
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The second abandons the intellectual framework that apparently motivated Warsh’s interest in the position.—
Daniel J. Arbess,
Fortune,
5 Feb. 2026
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The Hoenikker character, who abandons his car in a traffic jam one day and walks the rest of the way to work, and well, here's a snippet from the audio version of Cat's Cradle, told from the point of view of one of Hoenikker’s/Langmuir’s children.—
Natalia Sánchez Loayza,
Scientific American,
5 Feb. 2026
Verb
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Tracking how clusters assemble across vast stretches of time and space also informs our knowledge of the cosmic web and the cosmological parameters that shape it.—
Lee Billings,
Scientific American,
4 Feb. 2026
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Read Buy or Sell GOOG Stock to understand what informs our current opinion.—
Trefis Team,
Forbes.com,
29 Jan. 2026
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Cite this Entry
“Rats (on).” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/rats%20%28on%29. Accessed 13 Feb. 2026.
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