moralist vs philosopher

moralist and philosopher both are nouns.

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

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

moralist (noun)	philosopher (noun)
a philosopher who specializes in morals and moral problems	a specialist in philosophy
someone who demands exact conformity to rules and forms	a wise person who is calm and rational; someone who lives a life of reason with equanimity