A person who betrays his or her country, cause, friends, etc.; one guilty of treason or treachery
The definition of Judas is a term used for someone who betrays you while pretending to be your friend.
Any of numerous long-tailed rodents of various families (esp. Muridae and Cricetidae) resembling, but larger than, the mouse: rats are very destructive pests and carriers of highly contagious diseases, as bubonic plague and typhus
One of a group that acts in harmony
(Cribbage) A win by 30 or more points.
A person who goes over to the opposite side or party; traitor
One who double deals. A cheat or crook.
Renegade is defined as someone who rejects one religion or group for another.
(Slang) A stool pigeon.
Reliance on something in the future; hope:
Find another word for betrayer. In this page you can discover 24 synonyms, antonyms, idiomatic expressions, and related words for betrayer, like: traitor, deceiver, judas, rat, conspirator, skunk, turncoat, double-crosser, double-dealer, two-timer and informer.