1. (verb) trip, actuate, trigger, activate, set off, spark off, spark, trigger off, touch off
put in motion or move to act
Synonyms: jaunt, trip out, start, incite, detonate, offset, get off, motivate, spark, trip up, propel, take off, explode, instigate, trigger off, move, part, trigger, trip, depart, set off, stumble, prompt, turn on, activate, spark off, touch off, blow up, bring out, travel, start out, sparkle, set forth, actuate, stir up, cancel, aerate, set out
Antonyms: deactivate, inactivate
2. (verb) activate
make active or more active
Synonyms: set off, trigger, actuate, trigger off, spark, trip, spark off, aerate, touch off
Antonyms: deactivate, inactivate
3. (verb) activate
make more adsorptive
Synonyms: set off, trigger, actuate, trigger off, spark, trip, spark off, aerate, touch off
Antonyms: deactivate, inactivate
4. (verb) activate, aerate
aerate (sewage) so as to favor the growth of organisms that decompose organic matter
Synonyms: set off, trigger, actuate, oxygenize, trigger off, air out, spark, oxygenise, oxygenate, trip, activate, spark off, air, aerate, touch off
Antonyms: inactivate, deactivate
5. (verb) activate
make (substances) radioactive
Synonyms: set off, trigger, actuate, trigger off, spark, trip, spark off, aerate, touch off
Antonyms: deactivate, inactivate
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Synonyms for activate 
