main line

/ˌmeɪn ˌˈlaɪn/
IPA guide

Other forms: main lines

Definitions of main line
  1. noun
    the principal route of a transportation system
    see moresee less
    type of:
    itinerary, path, route
    an established line of travel or access
Cite this entry
Style:
MLA
  • MLA
  • APA
  • Chicago

Copy citation
DISCLAIMER: These example sentences appear in various news sources and books to reflect the usage of the word ‘main line'. Views expressed in the examples do not represent the opinion of Vocabulary.com or its editors. Send us feedback
Word Family