Meaning of “betray” - Learner’s Dictionary


verb [ T ] us uk /bɪˈtreɪ/

B2 to behave in a dishonest or cruel way to someone who trusts you:

When I heard what he had said about me, I felt betrayed.

If you betray your country or an organization, you give secret information to its enemies or to other organizations.


to show an emotion that you were trying to hide:

Her face was calm, but her hands betrayed her nervousness.

(Definition of “betray” from the Cambridge Learner’s Dictionary © Cambridge University Press)