plus vs minus

plus and minus both are nouns.

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

plus (noun)	minus (noun)
the arithmetic operation of summing; calculating the sum of two or more numbers	an arithmetic operation in which the difference between two numbers is calculated
a useful or valuable quality

plus (adjective)	minus (adjective)
on the positive side or higher end of a scale	on the negative side or lower end of a scale
involving advantage or good	involving disadvantage or harm