mortician vs funeral director

mortician and funeral director both are nouns.

Word	Noun	Adjective	Verb	Adverb
mortician	Yes	No	No	No
funeral director	Yes	No	No	No

As nouns, mortician and funeral director are synonyms defined as:

mortician and funeral director: one whose business is the management of funerals

Other synonyms of mortician include funeral undertaker, undertaker.

mortician (noun)	funeral director (noun)
one whose business is the management of funerals	one whose business is the management of funerals