caregiver vs chemist

caregiver and chemist both are nouns.

Word	Noun	Adjective	Verb	Adverb
caregiver	Yes	No	No	No
chemist	Yes	No	No	No

As nouns, chemist is a hyponym of caregiver; that is, chemist is a word with a more specific, narrower meaning than caregiver:

caregiver: a person who helps in identifying or preventing or treating illness or disability
chemist: a health professional trained in the art of preparing and dispensing drugs

caregiver (noun)	chemist (noun)
a person who is responsible for attending to the needs of a child or dependent adult	a scientist who specializes in chemistry
a person who helps in identifying or preventing or treating illness or disability	a health professional trained in the art of preparing and dispensing drugs