verb

1. To encourage development or induce increased activity; to stimulate.

2. To put a device, mechanism (alarm etc.) or system into action or motion; to trigger, to actuate, to set off, to enable.

3. To render more reactive; excite.

4. To render a molecule reactive, active, or effective in performing its function.

5. To render a substance radioactive.

6. To hasten a chemical reaction, especially by heating.

7. To remove the limitations of demoware by providing a license; to unlock.

8. To aerate in order to aid decomposition of organic matter.

9. To organize or create a military unit or station.

10. To bring a player back after an injury.