Definition of "lobbying"

The referee seemed well placed to award the goal, but video evidence suggested the protests were well founded and the incident only strengthens the case of those lobbying for technology to assist officials.

2012 April 15, Phil McNulty, “Tottenham 1-5 Chelsea”, in BBC

They showed a new and encouraging Parliamentary appreciation that it is time our national transport problems were examined expertly and without doctrinaire prejudice of any sort—or too much attention to the lobbying of some powerful special interests.

1961 January, “Talking of Trains: Marples out of step”, in Trains Illustrated, page 1

Although Sylvia had been present with her mother at the various lobbyings of parliament in 1905 she had not attempted, in the midst of her studies, to build up any support for WSPU policy in London.

2003, Elizabeth Crawford, Women's Suffrage Movement: A Reference Guide 1866-1928