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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Through it all, Thune kept talking to Sen. Susan Collins, R-Maine, a moderate Mainer who blanched at the bill’s Medicaid cuts.—
Burgess Everett,
semafor.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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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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Retired repos add risk: When maintainers abandon a namespace, attackers can adopt it and push trojan updates.—
Syed Ahmed,
Forbes.com,
1 July 2025
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Never desert a blaze: Avoid abandoning any fire without supervision.—
CA Weather Bot,
Sacbee.com,
1 July 2025
Verb
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According to media reports last week, the Defense Department’s rationale for cutting off this data has to do with cybersecurity concerns stemming from the way the data is transmitted between agencies.—
Andrew Freedman,
CNN Money,
30 June 2025
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In 2010, China cut off rare earth exports to Japan during a maritime dispute, a clear warning shot the U.S. observed but brushed off.—
Dewardric L. McNeal,
CNBC,
29 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 8 Jul. 2025.
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