empiricist vs philosopher

empiricist and philosopher both are nouns.

Word	Noun	Adjective	Verb	Adverb
empiricist	Yes	No	No	No
philosopher	Yes	No	No	No

As nouns, philosopher is a hypernym of empiricist; that is, philosopher is a word with a broader meaning than empiricist:

empiricist (noun)	philosopher (noun)
a philosopher who subscribes to empiricism	a specialist in philosophy
	a wise person who is calm and rational; someone who lives a life of reason with equanimity