push on vs push

push on is not a noun while push is a noun.

Word	Noun	Adjective	Verb	Adverb
push on	No	No	Yes	No
push	Yes	No	Yes	No

push on (noun)	push (noun)
	the act of applying force in order to move something away
	an effort to advance
	an electrical switch operated by pressing
	enterprising or ambitious drive
	the force used in pushing

push on (verb)	push (verb)
continue moving forward	make publicity for; try to sell (a product)
	press, drive, or impel (someone) to action or completion of an action
	make strenuous pushing movements during birth to expel the baby
	move with force
	approach a certain age or speed
	press against forcefully without moving
	move strenuously and with effort
	sell or promote the sale of (illegal goods such as drugs)
	strive and make an effort to reach a goal
	exert oneself continuously, vigorously, or obtrusively to gain an end or engage in a crusade for a certain cause or person; be an advocate for