last respects vs plural

last respects and plural both are nouns.

Word	Noun	Adjective	Verb	Adverb
last respects	Yes	No	No	No
plural	Yes	Yes	No	No

last respects (noun)	plural (noun)
the act of expressing respect for someone who has died	the form of a word that is used to denote more than one

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