gatekeeper vs porter

gatekeeper and porter both are nouns.

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

As nouns, gatekeeper and porter are synonyms defined as:

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

gatekeeper (noun)	porter (noun)
someone who guards an entrance	a very dark sweet ale brewed from roasted unmalted barley
someone who controls access to something	a person employed to carry luggage and supplies
	a railroad employee who assists passengers (especially on sleeping cars)
	someone who guards an entrance

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