Definition of main line in English:

main line

noun

  • 1A chief railway line.

    as modifier ‘a main-line station’
    • ‘The closures would eliminate all but one at-grade crossing in the city along the railway company's main line.’
    • ‘The Alcan company shipped its bauxite from Port Esquiville, a short distance from Bodies, utilising the existing main-line railway.’
    • ‘Notices telling train passengers what to do in an air raid are being put up in all main line railway stations.’
    • ‘At the same time, 24 major projects were successfully achieved and BR became the only profitable main-line railway in Europe.’
    • ‘The other key culpable person was the lead engineer who brought them out onto the main line.’
    • ‘He said there is no plan to expand the technology to main-line tracks such as the tracks between two cities.’
    • ‘For serious shopping, central London is about half an hour away by Underground or main-line rail service.’
    • ‘This settlement also significantly benefits from a main line railway station.’
    • ‘Virgin main-line trains made additional stops, too.’
    • ‘Unlike train engineers, who get six months of training for their regular job, remote operators are not qualified for main-line work.’
    • ‘The line is Britain's busiest and most congested main-line, says the strategy.’
    • ‘In addition to using the civil main lines, railways were constructed for purely military purposes, with no commercial value.’
    • ‘Kildare town has the best rail commuter service in the county, being served by regular mainline and Arrow services.’
    • ‘Some branch lines do not always branch off from the main line at the transfer station itself.’
    • ‘On the main line railways the failure to take any steps towards renationalisation has left members utterly disillusioned.’
    • ‘Despite the massive destruction to the railway system the main lines were cleared two days after the blast.’
    • ‘My first house was a red brick terrace in Folkestone, backing on to the main line railway.’
    • ‘We had the fastest trains, a brand new underground network, the start of main-line electrification and free-flowing buses and trams.’
    • ‘After all, it's only a branch line, not a main line station.’
    • ‘One year ago, yesterday, 10 people were killed in the Selby crash when a Land Rover ended up on the East Coast mainline.’
    1. 1.1North American A chief road or street.
      • ‘This applied particularly to the main lines of turnpike road constructed before 1811.’
      • ‘Each main line busway passenger must pay Rp 2,500 for a one-way trip.’
      • ‘At first I was riding the main line through the braking bumps, and the suspension, as always, was still super smooth.’
      • ‘It was a modern bus, one of the many vehicles put on to the main line routes and was fitted with CCTV so there will be a recording.’
      • ‘By State Statute, the Mayor of Salt Lake County has to approve all new main lines within Salt Lake County right-of-ways.’
      main route, trunk route, main road, trunk road, trunk line, high road, highway
      View synonyms
  • 2informal A principal vein as a site for a drug injection.

verb

[WITH OBJECT]informal
  • Inject (a drug) intravenously.

    ‘Mariella mainlines cocaine five times a day’
    no object ‘he started mainlining on heroin’
    • ‘Her performance electrifies the story of the model who died of the virus she probably picked up by mainlining heroin.’
    • ‘She had mainlined morphine, but never more than 10 cc.’
    • ‘Percodan is similar to codeine but is usually mainlined.’
    • ‘It begins with the great detective, Sherlock Holmes, mainlining on a 7% solution of cocaine.’
    • ‘Today, d-Meth is the most popular type in the U.S. and is the most potent, has far less side effects and does not need to be mainlined.’
    administer, introduce
    View synonyms

Pronunciation

main line