activate

US /ˈæk.tə.veɪt/

UK /ˈæk.tə.veɪt/

1.

make (something) active or operative

:

•

You need to activate your new phone before you can use it.

•

The alarm is designed to activate when smoke is detected.

:

enable trigger initiate start turn on

2.

make (a substance) more reactive or effective

:

•

Heating the catalyst will activate the chemical reaction.

•

Certain enzymes are needed to activate the protein.

:

catalyze energize stimulate

:

active activity activation actively activism active voice a hive of activity