stocks vs plural

stocks and plural both are nouns.

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

stocks (noun)	plural (noun)
a former instrument of punishment consisting of a heavy timber frame with holes in which the feet (and sometimes the hands) of an offender could be locked	the form of a word that is used to denote more than one
a frame for constraining an animal while it is receiving veterinary attention or while being shod
a frame that supports a boat while it is under construction

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