Lobby \Lob"by\, v. i. [imp. & p. p. Lobbied; p. pr. & vb. n. Lobbying.]

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. [U.S.]

--Bartlett. [1913 Webster]

Source: The Collaborative International Dictionary of English v.0.48
 

45 Moby Thesaurus words for "lobbying": Byzantine intrigues, allurement, backscratching, backstairs influence, blandishment, cajolement, cajolery, coaxing, connections, conning, deals, engagement, enlistment, exhortation, games, hortation, inducement, influence peddling, intrigues, jawboning, lobbyism, logrolling, persuasion, ploys, political influence, preaching, preachment, public opinion, ropes, sales talk, salesmanship, schemes, selling, snow job, social pressure, soft soap, solicitation, special-interest pressure, strings, suasion, sweet talk, wheedling, wire-pulling, wires, working on

Source: Moby Thesaurus II by Grady Ward, 1.0
 

Lobby \Lob"by\, v. i. [imp. & p. p. Lobbied; p. pr. & vb. n. Lobbying.]

To address or solicit members of a legislative body in the lobby or elsewhere, with the purpose to influence their votes.[U.S.]

--Bartlett.

Source: Webster's Revised Unabridged Dictionary (1913)