Synonyms/Hypernyms (Ordered by Estimated Frequency) of verb betray
6 senses of betray
Sense 1
betray, bewray -- (reveal unintentionally; "Her smile betrayed her true feelings")
=> unwrap, disclose, let on, bring out, reveal, discover, expose, divulge, break, give away, let out -- (make known to the public information that was previously known only to a few people or that was meant to be kept a secret; "The auction house would not disclose the price at which the van Gogh had sold"; "The actress won't reveal how old she is"; "bring out the truth"; "he broke the news to her"; "unwrap the evidence in the murder case")
Sense 2
betray, sell -- (deliver to an enemy by treachery; "Judas sold Jesus"; "The spy betrayed his country")
=> deceive, lead on, delude, cozen -- (be false to; be dishonest with)
Sense 3
fail, betray -- (disappoint, prove undependable to; abandon, forsake; "His sense of smell failed him this time"; "His strength finally failed him"; "His children failed him in the crisis")
=> disappoint, let down -- (fail to meet the hopes or expectations of; "Her boyfriend let her down when he did not propose marriage")
Sense 4
cheat on, cheat, cuckold, betray, wander -- (be sexually unfaithful to one's partner in marriage; "She cheats on her husband"; "Might her husband be wandering?")
=> deceive, lead on, delude, cozen -- (be false to; be dishonest with)
Sense 5
denounce, tell on, betray, give away, rat, grass, shit, shop, snitch, stag -- (give away information about somebody; "He told on his classmate who had cheated on the exam")
=> inform -- (impart knowledge of some fact, state or affairs, or event to; "I informed him of his rights")
Sense 6
deceive, betray, lead astray -- (cause someone to believe an untruth; "The insurance company deceived me when they told me they were covering my house")
=> misinform, mislead -- (give false or misleading information to)