noun
Korea Train Express; KTX
Proper noun referring to South Korea's high-speed rail service. Often abbreviated as KTX.
韓国高速鉄道でソウルから釜山まで行きました。
I went from Seoul to Busan on the Korea Train Express.
韓国高速鉄道はKTXとも呼ばれています。
The Korea Train Express is also called KTX.
Compound of 韓国 (South Korea), 高速 (high-speed), and 鉄道 (railway).