doorkeeper vs porter

doorkeeper and porter both are nouns.

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

As nouns, doorkeeper and porter are synonyms defined as:

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

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

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