descriptor vs linguistics

descriptor and linguistics both are nouns.

Word	Noun	Adjective	Verb	Adverb
descriptor	Yes	No	No	No
linguistics	Yes	No	No	No

descriptor (noun)	linguistics (noun)
a piece of stored information that is used to identify an item in an information storage and retrieval system	the scientific study of language
the phonological or orthographic sound or appearance of a word that can be used to describe or identify something	the humanistic study of language and literature