- v. 使无效；使不活动；解散部队
remove from active military status or reassign;
"The men were deactivated after five years of service"
"they deactivated the file"
- The bomb squad was called in to deactivate the car bomb.
- We would immediately deactivate your service on the SIM card.
- If you don't wish to use a feature, you can deactivate it.