porter vs doorkeeper

porter and doorkeeper both are nouns.

Word	Noun	Adjective	Verb	Adverb
porter	Yes	No	Yes	No
doorkeeper	Yes	No	No	No

As nouns, porter and doorkeeper are synonyms defined as:

Other synonyms of porter include door guard, doorman, gatekeeper, hall porter, ostiary.

porter (noun)	doorkeeper (noun)
a very dark sweet ale brewed from roasted unmalted barley	someone who guards an entrance
a person employed to carry luggage and supplies	an official stationed at the entrance of a courtroom or legislative chamber
a railroad employee who assists passengers (especially on sleeping cars)	the lowest of the minor Holy Orders in the unreformed Western Church but now suppressed by the Roman Catholic Church
someone who guards an entrance

porter (verb)	doorkeeper (verb)
carry luggage or supplies