1. to make immune or resistant to a particular disease, typically by vaccination
Usage: medical
2. to make someone or something immune or resistant to something harmful
Usage: figurative

Examples

• Parents should immunize their children against measles.
• The doctor will immunize you before your trip to Africa.
• All students must be immunized before starting school.
• The vaccine helps immunize people against the flu.
• Reading widely can immunize you against propaganda.
• Experience had immunized him against disappointment.