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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These folks won’t desert their teams, no matter how many NFL Sundays end in heartache.—
Tom Krasovic,
San Diego Union-Tribune,
6 Jan. 2026 -
The streets below were strangely empty for a weekday morning, and Madison Square Park, visible through the scaffolding, was deserted save for a few people and their pets braving the day’s frigid winds at the dog park.—
Kim Velsey,
Curbed,
5 Jan. 2026
Verb
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Brandon asked her out the next day, and the pair spent hours talking on a Ferris wheel during their first date.—
Jordan Greene,
PEOPLE,
9 Jan. 2026
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People with respiratory viruses who have high-risk conditions or who live in households with high-risk individuals should talk to their healthcare professional about taking antiviral medications to treat the virus or prevent transmission.—
Jack Perry,
The Providence Journal,
8 Jan. 2026
Verb
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Bonta rejected the allegations as unsubstantiated and said the states were targeted solely because of their political leadership.—
Sacbee.com,
Sacbee.com,
9 Jan. 2026
-
For at least the third time in just over a year, Humphrey has rejected most serious charges against rule-breaking cops.—
Stephanie Stremplewski,
Louisville Courier Journal,
9 Jan. 2026
Verb
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On the whole, higher limits offer better protection, so recognizing the differences in coverage between minimum requirements and real-life needs can inform better decision-making in this regard.—
Ethan M. Stone,
Miami Herald,
9 Jan. 2026
-
Local fire and government authorities are notified prior to burn days and kept informed throughout prescribed fire operations.—
CA WILDFIRE BOT,
Sacbee.com,
9 Jan. 2026
Verb
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The Miami Hurricanes are at home, while the entire state of Indiana – save for some in West Lafayette – is content to abandon their homes to enjoy this unexpectedly stupefying playoff march.—
Dana O’Neil,
CNN Money,
10 Jan. 2026
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Season One concludes with the Texas Tech geology graduate abandoning a well crew after tragedy strikes, only to achieve rapid success in his personal and work endeavors.—
Michael M. Rosen,
The Washington Examiner,
9 Jan. 2026
Verb
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The easiest way to cut into a pomegranate is to cut off the peel near the blossom end.—
Mary Ann Esposito,
Boston Herald,
7 Jan. 2026
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One congressman suggested that Washington should sooner cut off his own hand than sign a bill that would see his likeness on a coin, a move that would put him in the company of Nero and Caligula.—
Jake Lundberg,
The Atlantic,
7 Jan. 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 10 Jan. 2026.
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