activates
ac-ti-vates
verb
Causes something to begin operating or become active.
"Pressing the button activates the alarm system."
verb
Stimulates a process or reaction, often within a living system.
"The enzyme activates the chemical reaction."
Thesaurus
Synonyms: activate, spark off, trigger, set off, actuate, trip, trigger off, touch off, spark, aerate
Antonyms: deactivate, inactivate