trunk line

American  

noun

1. a major long-distance transportation line.

2. trunk.

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trunk line British  

noun

1. a direct link between two telephone exchanges or switchboards that are a considerable distance apart

2. the main route or routes on a railway

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Etymology

Origin of trunk line

First recorded in 1850–55

Example Sentences

See Examples For:

trunk line

There are more than 40 trunk line projects in the agency’s capital improvement plan, which will be in construction from now until 2057.

From Los Angeles Times ● Jul. 25, 2026

There are about 547 miles of trunk line underground across the city, much of which is nearing the end of its useful life and will need to be replaced in the coming years.

From Los Angeles Times ● Jul. 20, 2026

It is not clear how long it will take DWP to make repairs to the trunk line in West Hollywood.

From Los Angeles Times ● Jul. 17, 2026

There are about 547 miles of trunk line underground across the city.

From Los Angeles Times ● Jul. 17, 2026

It is worth knowing that while the interoceanic line approaches completion Guatemala is making decided progress in the links of the Pan-American or intercontinental north and south trunk line.

From Guatemala, the country of the future by Charles M. Pepper