lobby vs building

lobby and building both are nouns.

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

lobby (noun)	building (noun)
a large entrance or reception room or area	the act of constructing something
an interest group that tries to influence legislators or bureaucrats to act in their favor, typically through lobbying	the commercial activity involved in repairing old structures or constructing new ones
the people who support some common cause or business or principle or sectional interest	a structure that has a roof and walls and stands more or less permanently in one place
	the occupants of a building

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