plural of two-line whip

A single-line whip.

(Britain) A directive from an MP's superiors to attend a vote.

plural of fine line

(Britain) A non-binding indication, given to an MP by the MP's superiors, of when a vote is expected to take place, and what outcome the MP's party would like.

plural of tram line

Alternative spelling of tramline

A pipe or hose connecting a gas appliance to the main supply of natural gas for the apartment, office or building.

plural of gas line

Alternative form of jetliner