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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Idle oil wells cleanup Senate Bill 47 raises the cap on how much money from the Oil, Gas, and Geothermal Administrative Fund can be spent to plug and cleanup deserted oil wells, according to the California State Senate website.—
Veronica Fernandez-Alvarado
April 22,
Sacbee.com,
22 Apr. 2026 -
There are 15 overall child care deserts out of 74 ZIP codes in Tarrant, and 40% of those deserts are considered to be chronic.—
Lina Ruiz
April 16,
Fort Worth Star-Telegram,
16 Apr. 2026
Verb
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Reis talked her way onto a crew member’s unofficial salvage expedition.—
Julian Lucas,
New Yorker,
20 Apr. 2026
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His content is best known for his spontaneous interactions, such as stopping to talk with strangers on the roadside or offering impromptu taxi services.—
Max Goldbart,
Deadline,
20 Apr. 2026
Verb
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According to a California audit last month which analyzed open network traffic across more than 7,600 popular websites scanned from California, over half (55%) of sites set advertising cookies even after users explicitly rejected them.—
Catherina Gioino,
Fortune,
21 Apr. 2026
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His dwarfism led his mother to reject him, a natural response when something seems wrong.—
Ryan Brennan,
Kansas City Star,
21 Apr. 2026
Verb
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Williams said that the new results can help inform the experimental design for these future missions.—
Leonard David,
Space.com,
21 Apr. 2026
-
The fans who experience it smoothly will be the ones who planned early, stayed informed and adapted their expectations to the realities of hosting an event of this scale.—
Taylor Haught,
Kansas City Star,
21 Apr. 2026
Verb
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If the Eagles don’t fully abandon that style, Campbell could fit in nicely.—
Brooks Kubena,
New York Times,
25 Apr. 2026
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Just a few years later, in the fall of 2019, mountaineer Garrett Madison abandoned an Everest expedition due to another serac causing unsafe conditions in the Khumbu Icefall.—
Jessie Yeung,
CNN Money,
24 Apr. 2026
Verb
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Global supply chains have been impacted by the war since the end of February and the chokehold on the Strait of Hormuz, cutting off some of the materials used in condom production.—
David Goldman,
CNN Money,
21 Apr. 2026
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The closed Strait of Hormuz, as well as export bans of refined fuel products from countries like China and South Korea, have cut off petrol supplies in Asia.—
Angelica Ang,
Fortune,
21 Apr. 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 25 Apr. 2026.
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