|1.||[ verb ] reveal unintentionally|
"Her smile betrayed her true feelings"
|2.||[ verb ] deliver to an enemy by treachery|
"Judas sold Jesus" "The spy betrayed his country"
|Related terms:||deceive double_cross sell|
|3.||[ verb ] 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"
|4.||[ verb ] give away information about somebody|
|Synonyms:||tell_on rat shop grass peach shit give_away snitch stag denounce|
"He told on his classmate who had cheated on the exam"
|Related terms:||inform tip_off crap informer fink deserter|
|5.||[ verb ] (sexuality) be sexually unfaithful to one's partner in marriage|
|Synonyms:||wander cheat cuckold cheat_on|
"She cheats on her husband" "Might her husband be wandering?"
|Related terms:||deceive twotime play_around two-time cuckold|
|6.||[ verb ] cause someone to believe an untruth|
"The insurance company deceived me when they told me they were covering my house"
|Related terms:||undeceive misinform gull pose bamboozle double-crosser|