1The company's decision to downsize betrayed the trust of its employees.
2Did the politician's actions betray the promises she made during her campaign?
3He felt betrayed by his best friend's decision to date his ex-girlfriend.
4If you betray your country's secrets, you could face serious consequences.
5The whistleblower's decision to reveal the company's wrongdoing did not betray the public's trust, but rather restored it.