betrayal

noun

1. (countable, uncountable)The act of betraying.

   “But by the same token, an exclusive menu of betrayals is likely to be a starvation diet.”

   “The betrayal of our friends in Taiwan began with President Carter’s decision to terminate the mutual defense treaty with Taiwan that Congress had ratified in 1954.”

   “One of our own has joined with the alien. If you see him, do not hesitate to let him know what the Roekaar think of this betrayal.”