settlings vs plural

settlings and plural both are nouns.

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

settlings (noun)	plural (noun)
sediment that has settled at the bottom of a liquid	the form of a word that is used to denote more than one

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