Meaning of 'on'

adverb

with a forward motion

Example: "we drove along admiring the view"

Synonyms: along

adverb

indicates continuity or persistence or concentration

Example: "The band's spirit lives on in the music they made."

adverb

in a state required for something to function or be effective

Example: "turn the lights on"

adjective

in operation or operational

Example: "left the oven on"

adjective

of events, planned or scheduled

Example: "The picnic is on, rain or shine."