stargazer vs physicist

stargazer and physicist both are nouns.

Word	Noun	Adjective	Verb	Adverb
stargazer	Yes	No	No	No
physicist	Yes	No	No	No

As nouns, physicist is a hypernym of stargazer; that is, physicist is a word with a broader meaning than stargazer:

stargazer (noun)	physicist (noun)
heavy-bodied marine bottom-lurkers with eyes on flattened top of the head	a scientist trained in physics
a physicist who studies astronomy
someone indifferent to the busy world