trunk line

/ˌtrʌŋk ˈlaɪn/
IPA guide

Other forms: trunk lines

Definitions of trunk line
  1. noun
    a telephone line connecting two exchanges directly
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    type of:
    line, phone line, subscriber line, telephone circuit, telephone line
    a telephone connection
  2. noun
    line that is the main route on a railway
    synonyms: trunk route
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    type of:
    line, rail line, railway line
    the road consisting of railroad track and roadbed
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