porter vs gatekeeper

porter and gatekeeper both are nouns.

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

As nouns, porter and gatekeeper are synonyms defined as:

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

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

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