Pronunciation: /ræt aʊt/
verb to inform on or betray someone, especially to the authorities
A1 I saw my friend rat out on his classmates for cheating on the test.
A2 The little boy didn't want to rat out his brother for breaking the vase.
B1 She decided to rat out her coworker for stealing office supplies.
B2 The witness was afraid to rat out the criminal to the police.
C1 The whistleblower bravely decided to rat out the corrupt organization.
C2 He was pressured to rat out his colleagues in exchange for a lighter sentence.
formal He threatened to rat out his colleagues if they didn't confess to their wrongdoings.
informal I can't believe you're going to rat me out to the teacher for skipping class.
slang Don't be a snitch and rat out your friends for breaking the rules.
figurative She felt like her own mind was trying to rat her out by revealing her deepest fears.
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