| | feeder line; main line; track, data track; air lane, flight path, airway, skyway; traffic pattern, approach pattern, pattern; flight path; beat, round; bus route; line of flight; line of march; orbit, celestial orbit; orbit, electron orbit; paper route, paper round; beeline; circuit; crosscut; supply line, supply route; line of fire; migration route, flyway; fairway; direction, way; trade route; Northwest Passage |