Definitions
1.VerbTo encourage development or induce increased activity; to stimulate."activate the economy"
2.VerbTo put a device, mechanism (alarm etc.) or system into action or motion; to trigger, to actuate, to set off, to enable."The pranksters activated the fire alarm by spraying deodorant next to it."
3.VerbTo render more reactive; excite.
4.VerbTo render a molecule reactive, active, or effective in performing its function.
5.VerbTo render a substance radioactive.
6.VerbTo hasten a chemical reaction, especially by heating.
7.VerbTo remove the limitations of demoware by providing a license; to unlock.
8.VerbTo aerate in order to aid decomposition of organic matter.
9.VerbTo organize or create a military unit or station."A new squadron was activated."
10.VerbTo bring a player back after an injury.