highway; expressway; freeway; motorway
Refers to a controlled-access, high-speed road for automobiles. The Japanese term covers what are variously called highways, expressways, freeways, or motorways in different English-speaking regions.
高速道路で渋滞に巻き込まれた。
I got stuck in a traffic jam on the expressway.
次のインターチェンジで高速道路を降りてください。
Please exit the highway at the next interchange.
I got on the expressway in Tokyo and drove all the way to Osaka.
Please get off the expressway at the next interchange.
During the Obon holiday, the expressway gets terribly congested.
Be careful not to speed when driving on the expressway.
高速道路 is the standard, official Japanese term for an expressway, while ハイウェイ is a casual loanword often used in conversation or branding.
道路 is the general word for any road, while 高速道路 narrows this down to an expressway or motorway.