lobby vs narthex

lobby and narthex both are nouns.

Word	Noun	Adjective	Verb	Adverb
lobby	Yes	No	Yes	No
narthex	Yes	No	No	No

As nouns, narthex is a hyponym of lobby; that is, narthex is a word with a more specific, narrower meaning than lobby:

lobby (noun)	narthex (noun)
a large entrance or reception room or area	a vestibule leading to the nave of a church
an interest group that tries to influence legislators or bureaucrats to act in their favor, typically through lobbying	portico at the west end of an early Christian basilica or church
the people who support some common cause or business or principle or sectional interest

lobby (verb)	narthex (verb)
detain in conversation by or as if by holding on to the outer garments of; as for political or economic favors