plural form vs rich

plural form and rich both are nouns.

Word	Noun	Adjective	Verb	Adverb
plural form	Yes	No	No	No
rich	Yes	Yes	No	No

plural form (noun)	rich (noun)
the form of a word that is used to denote more than one	people who have possessions and wealth (considered as a group)

plural form (adjective)	rich (adjective)
	possessing material wealth
	having an abundant supply of desirable qualities or substances (especially natural resources)
	suggestive of or characterized by great expense
	high in mineral content; having a high proportion of fuel to air
	causing indignation due to hypocrisy
	affording an abundant supply
	strong; intense
	marked by great fruitfulness
	pleasantly full and mellow
	marked by richness and fullness of flavor
	containing plenty of fat, or eggs, or sugar
	of great worth or quality
	very productive