One entry found for betray.

Entry Word: betray
Function: verb
Text: 1 to be unfaithful or disloyal to <childhood friends of movie stars often betray them by telling their secrets to the supermarket tabloids>
Synonyms cross, double-cross, sell (out)
Related Words give away; inform (on), rat (on), snitch (on), split (on) [British], tell (on)
Phrases go back on
Near Antonyms defend, guard, protect, safeguard, save, shield
2 to make known (something abstract) through outward signs <his face betrayed his exasperation with his nosy neighbor> -- see SHOW 2