plural vs compliments

plural and compliments both are nouns.

Word	Noun	Adjective	Verb	Adverb
plural	Yes	Yes	No	No
compliments	Yes	No	No	No

plural (noun)	compliments (noun)
the form of a word that is used to denote more than one	(usually plural) a polite expression of desire for someone's welfare

plural (adjective)	compliments (adjective)
grammatical number category referring to two or more items or units
composed of more than one member, set, or kind