There are 2 definitions of main line in English:

main line

Line breaks: main line


  • 1A chief railway line: [as modifier]: a main-line station
    More example sentences
    • The Alcan company shipped its bauxite from Port Esquiville, a short distance from Bodies, utilising the existing main-line railway.
    • At the same time, 24 major projects were successfully achieved and BR became the only profitable main-line railway in Europe.
    • Virgin main-line trains made additional stops, too.
  • 1.1North American A chief road or street.
    More example sentences
    • 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.
  • 2 informal A principal vein as a site for a drug injection.


Back to top  
  • (mainline) [with object] informal Inject (a drug) intravenously: Mariella mainlines cocaine five times a day [no object]: he started mainlining on heroin
    More example sentences
    • Her performance electrifies the story of the model who died of the virus she probably picked up by mainlining heroin.
    • It begins with the great detective, Sherlock Holmes, mainlining on a 7% solution of cocaine.
    • She had mainlined morphine, but never more than 10 cc.



More example sentences
  • Except for age, there are significant differences between mainliners and fundamentalists on all independent variables.
  • But the mainliners are quiet - and their numbers are diminishing so fast, they're not sure they'd be heard if they screamed.
  • Most mainliners do not view modern culture as inherently inimical to religious belief.

More definitions of main line

Definition of main line in:

Get more from Oxford Dictionaries

Subscribe to remove adverts and access premium resources

Word of the day tortie
Pronunciation: ˈtɔːtiː
a tortoiseshell cat

There are 2 definitions of main line in English:

Main Line

Syllabification: Main Line

Entry from US English dictionary

  • A popular name for a series of affluent suburbs west of Philadelphia in Pennsylvania, along the old Pennsylvania Railroad main line.

More definitions of main line

Definition of Main Line in: