phonetician vs linguist

phonetician and linguist both are nouns.

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

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

Other hypernyms of phonetician include linguistic scientist.

phonetician (noun)	linguist (noun)
a specialist in phonetics	a person who speaks more than one language
	a specialist in linguistics