Definition Of betray
expose (one's country, a group, or a person) to danger by treacherously giving information to an enemy.
a double agent who betrayed some 400 British and French agents to the Germans
unintentionally reveal; be evidence of.
she drew a deep breath that betrayed her indignation
Example Of betray
A lot of what you see and read on the web requires trust on the part of the reader, and when someone betrays that trust, every reader that bought into the story loses something.
A system that has brought unimagined prosperity cannot survive if such betrayals become commonplace.
And in the process she betrays all her own careful jurisprudence around race.
And the carefree indifference to the truth that that sort of statement betrays is worrisome in the extreme - even if it's said in the service of a goal you think we should pursue.
And to a great extent, I feel somewhat betrayed , if you will.