noun
Yokosuka Line
A JR East railway line connecting Tokyo and Yokosuka, often used for commuting and access to the Miura Peninsula.
横須賀線で鎌倉まで行きます。
I'll go to Kamakura on the Yokosuka Line.
Compound of 横須賀 (Yokosuka, a city in Kanagawa Prefecture) and 線 (line, railway line).