in operation or operational; left the oven on; the switch is in the on position'

(of events) planned or scheduled; the picnic is on, rain or shine; we have nothing on for Friday night'

with a forward motion; we drove along admiring the view; the horse trotted along at a steady pace; the circus traveled on to the next city; move along; march on

[ Syn: along , along , along , along , along , along , along , along ]

indicates continuity or persistence or concentration; his spirit lives on; shall I read on?'

in a state required for something to function or be effective; turn the lights on; get a load on'