Noun: trunk line trúngk lIn
- Line that is the main route on a railway
"The trunk line connected the major cities along the coast";
- trunk route
- A telephone line connecting two exchanges directly
"The trunk line between the cities was damaged during the storm"
Derived forms: trunk lines
Type of: line, phone line, rail line, railroad line [N. Amer], railway line [Brit, Cdn], subscriber line, telephone circuit, telephone line
Encyclopedia: Trunk line