1. (verb) put in motion or move to act

• actuate
• set off
• spark
• spark off
• touch off
• trigger
• trigger off
• trip

2. (verb) aerate (sewage) so as to favor the growth of organisms that decompose organic matter

• aerate

1. (verb) put in motion or move to act

• initiate
• pioneer

2. (verb) make active or more active

• alter
• change
• modify

3. (verb) make more adsorptive

• alter
• change
• modify

4. (verb) aerate (sewage) so as to favor the growth of organisms that decompose organic matter

• alter
• change
• modify

5. (verb) make (substances) radioactive

• alter
• change
• modify

1. (verb) make active or more active

• reactivate

1. (verb) put in motion or move to act

• act
• deed
• human action
• human activity
• activation
• actuation
• propulsion
• actuator
• induction
• initiation
• trigger
• spark
• trip
• trip
• tripper
• tripper

2. (verb) make active or more active

• activation
• activator

3. (verb) make more adsorptive

• activation

4. (verb) aerate (sewage) so as to favor the growth of organisms that decompose organic matter

• activation
• aerator
• air

5. (verb) make (substances) radioactive

• activation

1. (verb) make active or more active

• deactivate
• inactivate