高速 (gāo sù) means “high speed; expressway (abbr. for 路)”. It is an HSK 3 Chinese word in the HSK 3.0 vocabulary.
Practice each character:
这是高速公路,车速很快畅通。
Zhè shì gāosù gōnglù.
This is a highway.
Updated: 2026-05-27