front end vs forepart

front end and forepart both are nouns.

Word	Noun	Adjective	Verb	Adverb
front end	Yes	No	No	No
forepart	Yes	No	No	No

As nouns, front end and forepart are synonyms defined as:

Other synonyms of front end include front.

front end (noun)	forepart (noun)
the side that is forward or prominent	the side that is forward or prominent