bearer vs pallbearer

bearer and pallbearer both are nouns.

Word	Noun	Adjective	Verb	Adverb
bearer	Yes	No	No	No
pallbearer	Yes	No	No	No

As nouns, bearer and pallbearer are synonyms defined as:

bearer and pallbearer: one of the mourners carrying the coffin at a funeral

bearer (noun)	pallbearer (noun)
a messenger who bears or presents	one of the mourners carrying the coffin at a funeral
one of the mourners carrying the coffin at a funeral
the person who is in possession of a check or note or bond or document of title that is endorsed to him or to whoever holds it
someone whose employment involves carrying something