1. to make something inactive or stop it from working
Usage: third person singular present tense of deactivate

Examples

• The security system automatically deactivates when you enter the correct code.
• She deactivates her social media accounts during exam week.
• The software deactivates unused features to save memory.
• The bomb squad carefully deactivates the explosive device.
• The alarm deactivates after thirty seconds of silence.
• He deactivates the car alarm with his key fob.