Lobby and Single-interest group

Lobby noun - A centrally located room in a building that serves as a gathering or waiting area or as a passageway into the interior.

Single-interest group and lobby are semantically related In some cases you can use "Single-interest group" instead a noun "Lobby".

Nearby Words: lobbed, lobbying, lobbyist, lobbied, lobbing

Lobby and single-interest group are semantically related in group with one cause or activity topic. You can use "Lobby" instead a noun phrase "Single-interest group".