To formally signal the start of (a meeting or function or assembly or court).
To power up, to put into operation, to start, to activate (an appliance, light, mechanism, functionality etc.).
To aim at.
To depend upon; to pivot around, to have as a central subject.
To fill with enthusiasm; to intoxicate, give pleasure to ( + to an object of interest or excitement).
To start operating; to power up, to become on.
To take drugs.
To cause to take up drugs, especially hallucinogens.
To set a flow of fluid or gas running by rotating a tap or valve.
To violently rebel against; to suddenly attack.
To sexually arouse.