American English
/bɪˈtʰɹeɪ/
2 syllables · Stress the second syllable.
To be disloyal to someone who trusts you, especially by helping an enemy or doing something harmful.
Practice out loudTo be disloyal to someone who trusts you, especially by helping an enemy or doing something harmful.
He betrayed his closest friend.
She felt betrayed by her business partner.
betray someone's trust · betray a friend · betray your country
betray someone
betray someone's trust
To reveal a secret or private information, especially when this harms someone or breaks their trust.
He betrayed our secret to the press.
Please don't betray my confidence.
betray a secret · betray someone's confidence
betray a secret
betray someone's confidence
To show a hidden feeling, thought, or fact without meaning to.
Her voice betrayed her fear.
His smile betrayed that he was nervous.
betray fear · betray emotion · betray signs of nervousness
something betrays a feeling
something betrays that someone is worried
to be disloyal to someone who trusted you
He betrayed my trust by sharing my private messages.
to reveal a secret that someone shared with you
I promised not to betray her confidence.
The past and past participle are both betrayed. Write betrayed, not betrayd.