Definition of BETRAY

to be unfaithful or disloyal to <childhood friends of movie stars often betray them by telling their secrets to the supermarket tabloids>
Related Words give away; inform (on), peach, rat (on), shop [British], snitch (on), split (on) [British], tell (on), turn in
Phrases go back on, sell down the river, stab in the back
Antonyms stand by
to make known (something abstract) through outward signs <his face betrayed his exasperation with his nosy neighbor>
to lead away from a usual or proper course by offering some pleasure or advantage <she was betrayed by a false show of friendship into covering up the crime>
Near Antonyms alert, caution, forewarn, ward (off), warn; drive (away or off), repulse, turn away

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