aesthetician vs philosopher

aesthetician and philosopher both are nouns.

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

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

aesthetician (noun)	philosopher (noun)
a philosopher who specializes in the nature of beauty	a specialist in philosophy
a worker skilled in giving beauty treatments (manicures and facials etc.)	a wise person who is calm and rational; someone who lives a life of reason with equanimity