chemist vs caregiver

chemist and caregiver both are nouns.

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

As nouns, caregiver is a hypernym of chemist; that is, caregiver is a word with a broader meaning than chemist:

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

Other hypernyms of chemist include health care provider, health professional, PCP, primary care provider.

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