on

Is ‘on’ a Scrabble US Word? Yes
Is ‘on’ a Scrabble UK Word? Yes
Is ‘on’ a Words With Friends Word? Yes
Is ‘on’ an Adjective? Yes
Is ‘on’ an Adverb? Yes
Is ‘on’ a Noun? Yes
Is ‘on’ a Verb? Yes
adjective.
adjective.
(of events) planned or scheduled;
"the picnic is on, rain or shine"
"we have nothing on for Friday night"
adverb.
adverb.
"his spirit lives on"
"shall I read on?"
adverb.
in a state required for something to function or be effective;
"turn the lights on"
"get a load on"

See also: Words That Rhyme With ON →