plural vs oat

plural and oat both are nouns.

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

plural (noun)	oat (noun)
the form of a word that is used to denote more than one	seed of the annual grass Avena sativa (spoken of primarily in the plural as `oats')
	annual grass of Europe and North Africa; grains used as food and fodder (referred to primarily in the plural: `oats')

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