1. to think that something is true or real
2. to have confidence or faith in someone or something
3. to have religious faith

Examples

• I believe it will rain tomorrow.
• Do you believe what he told you?
• She believes in her team’s ability to win.
• Many people believe in God.
• I believe you’re making the right choice.
• He believes that hard work pays off.
• They believe in treating everyone fairly.