Noun has 3 senses

• gas line(n = noun.group) - a queue of vehicles waiting to purchase gasoline;


• gas line(n = noun.artifact) - a pipeline used to transport natural gas; "the workmen broke through the gas line"


• gas line(n = noun.artifact) fuel line, petrol line - a pipe that carries gasoline from a tank to a gasoline engine; "the car wouldn't start because dirt clogged the gas line"