lobbyn.[LL. lobium, lobia, laubia, a covered portico fit for walking, fr. OHG. louba, G. laube, arbor. See Lodge.]1. (Arch.) A passage or hall of communication, especially when large enough to serve also as a waiting room. It differs from an antechamber in that a lobby communicates between several rooms, an antechamber to one only; but this distinction is not carefully preserved.()2. That part of a hall of legislation not appropriated to the official use of the assembly; hence, the persons, collectively, who frequent such a place to transact business with the legislators;()3. (Naut.) An apartment or passageway in the fore part of an old-fashioned cabin under the quarter-deck.()4. (Agric.) A confined place for cattle, formed by hedges. trees, or other fencing, near the farmyard.()Lobby member, a lobbyist. [Humorous cant, U. S.]()v. i. To address or solicit members of a legislative body in the lobby or elsewhere, with the purpose to influence their votes; in an extended sense, to try to influence decision-makers in any circumstance.(Bartlett.)v. t. To urge the adoption or passage of by soliciting members of a legislative body; as, to lobby a bill; -- also used with the legislators as object; as, to lobby the state legislatuire for protection.()