assistant vs assist

assistant and assist both are nouns.

Word	Noun	Adjective	Verb	Adverb
assistant	Yes	Yes	No	No
assist	Yes	No	Yes	No

assistant (noun)	assist (noun)
a person who contributes to the fulfillment of a need or furtherance of an effort or purpose	(sports) the act of enabling another player to make a good play
	the activity of contributing to the fulfillment of a need or furtherance of an effort or purpose

assistant (adjective)	assist (adjective)
of or relating to a person who is subordinate to another

assistant (verb)	assist (verb)
	act as an assistant in a subordinate or supportive function
	work for, or be a servant to
	give help or assistance; be of service