lobby vs lobbyist

lobby and lobbyist both are nouns.

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

lobby (noun)	lobbyist (noun)
a large entrance or reception room or area	someone who is employed to persuade legislators to vote for legislation that favors the lobbyist's employer
an interest group that tries to influence legislators or bureaucrats to act in their favor, typically through lobbying
the people who support some common cause or business or principle or sectional interest

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