noun
Tōkyū Tōyoko Line
A railway line operated by Tokyu Corporation, connecting Shibuya in Tokyo with Yokohama in Kanagawa Prefecture.
東急東横線で渋谷から横浜まで行きます。
I go from Shibuya to Yokohama on the Tōkyū Tōyoko Line.
The name is a compound of 東急 (Tōkyū, the railway company) and 東横 (Tōyoko, an abbreviation of 東京 Tōkyō and 横浜 Yokohama) plus 線 (line).