on

/ɑn/

/ɒn/

Definitions of on

1. adverb

   in a state required for something to function or be effective
   “turn the lights on”

   “get a load on”
2. adjective

   in operation or operational
   “left the oven on”

   “the switch is in the on position”

   synonyms:

   connected

   plugged in

   antonyms:

   off

   not in operation or operational

   disconnected

   not plugged in or connected to a power source
3. adverb

   with a forward motion
   “the circus traveled on to the next city”

   “march on”

   synonyms: along
4. adverb

   indicates continuity or persistence or concentration
   “his spirit lives on”

   “shall I read on?”
5. adjective

   (of events) planned or scheduled
   “the picnic is on, rain or shine”

   “we have nothing on for Friday night”

   antonyms:

   off

   (of events) no longer planned or scheduled