break promise

abandon deceive forsake mislead seduce

bluff cross delude desert finger jilt knife trick

be unfaithful bite the hand that feeds you blow the whistle break faith break trust break with commit treason deliver up double-cross go back on inform against inform on let down play Judas play false sell down the river sell out stab in the back take in turn in turn informer turn state's evidence walk out on

aid assist help stay

be faithful be loyal be quiet defend hide keep secret protect support

betray break one's word forswear oneself perjure oneself renege

deceive mislead misrepresent promote

BS beguile bull con concoct delude dissemble dissimulate distort dupe equivocate exaggerate fabricate fake falsify fib forswear frame fudge invent malign misguide misinform misspeak misstate overdraw palter perjure pervert phony plant prevaricate snow soft-soap victimize

be untruthful bear false witness go back on make believe misinstruct put on put up a front string along

be honest tell the truth

abandon backstab be disloyal be unfaithful betray commit treason cross deceive double-cross finger go back on inform on play Judas sell down the river sell out trick turn in turn informer turn traitor