本ほん線せん

ほ

ん

せ

ん

Common wordJLPTN1Freq.FrequencyTop 20,000

Meanings

1

noun

main line; trunk line

Refers to the primary route in a railway, road, or utility network, as opposed to branch lines or local lines.

支し線せん
支線 means 'branch line' or 'spur line', the opposite of 本線.
幹かん線せん
幹線 also means 'main line' or 'trunk line', but is more often used for major arteries in broader networks (e.g., 幹線道路). 本線 is more common for specific railway or utility lines.

Compound of 本 (main, principal) and 線 (line).