- gas line - a queue of vehicles waiting to purchase gasoline
--1 is a kind of queue, waiting line
- gas line - a pipeline used to transport natural gas; "the workmen broke through the gas line"
--2 is a kind of pipeline, line
- fuel line, gas line - a pipe that carries gasoline from a tank to a gasoline engine; "the car wouldn't start because dirt clogged the gas line"
--3 is a kind of pipe, pipage, piping
--3 is a part of fuel system - gas line - a pipeline used to transport natural gas; "the workmen broke through the gas line"