deactivate

• de-activate
• deäctivate

From de- + activate.

• (UK) IPA^(key): /ˌdiːˈæktɪveɪt/

• Audio (Southern England):

  (file)

deactivate (third-person singular simple present deactivates, present participle deactivating, simple past and past participle deactivated)

1. (ergative) to make something inactive or no longer effective

   deactivate an account

   deactivate a device

   The technician deactivated the alarm system before repairs began.

   You should deactivate your old account to protect your privacy.

2. to prevent the action of a biochemical agent (such as an enzyme)

   chemically deactivate

   The chemical agent was deactivated by exposure to heat.

3. to remove a person or piece of hardware from active military service
4. (Internet, euphemistic, neologism) to commit suicide

• activate
• inactivate