funeral undertaker vs mortician

funeral undertaker and mortician both are nouns.

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

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

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

Other synonyms of funeral undertaker include funeral director, undertaker.

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