advantage vs plus

advantage and plus both are nouns.

Word	Noun	Adjective	Verb	Adverb
advantage	Yes	No	Yes	No
plus	Yes	Yes	No	No

As nouns, plus is a hypernym of advantage; that is, plus is a word with a broader meaning than advantage:

Other hypernyms of advantage include asset.

advantage (noun)	plus (noun)
the quality of having a superior or more favorable position	the arithmetic operation of summing; calculating the sum of two or more numbers
benefit resulting from some event or action	a useful or valuable quality
(tennis) first point scored after deuce

advantage (adjective)	plus (adjective)
	on the positive side or higher end of a scale
	involving advantage or good

advantage (verb)	plus (verb)
give an advantage to