linguist vs scientist

linguist and scientist both are nouns.

Word	Noun	Adjective	Verb	Adverb
linguist	Yes	No	No	No
scientist	Yes	No	No	No

As nouns, scientist is a hypernym of linguist; that is, scientist is a word with a broader meaning than linguist:

linguist (noun)	scientist (noun)
a person who speaks more than one language	a person with advanced knowledge of one or more sciences
a specialist in linguistics