Meaning : In operation or operational.
Example :
Left the oven on.
The switch is in the on position.
Meaning : With a forward motion.
Example :
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.
Synonyms : along
Meaning : Indicates continuity or persistence or concentration.
Example :
His spirit lives on.
Shall I read on?.
Meaning : In a state required for something to function or be effective.
Example :
Turn the lights on.
Get a load on.
On ka meaning, vilom shabd, paryayvachi aur samanarthi shabd in Hindi. On ka matlab kya hota hai?