Look up mainline, main line in Wiktionary, the free dictionary.

Mainline, Main line, or Main Line may refer to:

Railways

• Main line (railway), the principal artery of a railway system
• Main Line of Public Works, a railroad and canal system in Pennsylvania; also:
  • Main Line (Pennsylvania Railroad), Philadelphia to Pittsburgh
• Main Line (Long Island Rail Road), Long Island City to Greenport
• Main Line (NJ Transit), formerly part of the Erie Railroad, Hoboken to Port Jervis

Other transport

• Mainline (flight), an airline carrier's non-regional service
• A toll road system where all vehicles stop at various locations on the highway to pay a toll

Defunct companies

• Midland Mainline, a defunct UK train operating company
• Mainline Freight, a UK railfreight company
• First South Yorkshire, formerly "Mainline" (1993-1998), a large bus operator in South Yorkshire, England

Computing

• BitTorrent (software), nicknamed mainline by developers denoting its official origins

Religion

• Mainline (Protestant) Christian church denominations

Music

• McKenna Mendelson Mainline, a seminal Canadian blues band
• "Mainline", a song by KISS on their 1974 album Hotter Than Hell
• "Mainliner" is a short-length album by country influenced punk-rock band Social Distortion

Geography

• Pennsylvania Main Line, a collection of suburbs of Philadelphia, Pennsylvania

Linguistics

• Speyer line, an isogloss in German linguistics

Popular culture

• Mainline, a slang verb meaning to inject heroin into the bloodstream

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