adjectival noun or quasi-adjective, takes genitive case の, noun

  1. high-speed, rapid, express.

noun

Abbreviation.
  1. highway, freeway, expressway, motorway.

Variations

Pronunciation Kanji Kana Is Common
高速 こうそく

Contained Kanji Breakdown

tall, high, expensive
コウ たか.い た (2nd, N5)
kettle lid radical (no. 8)
トウ (Kentei 1)
mouth
くち コウ ク (1st, N4)
desert, border prairie, the 1st form is radical 13
キョウ ケイ まきがまえ
upside-down box radical (no. 13)
キョウ ケイ (Kentei 1)
quick, fast
ソク はや.い すみ.やか (3rd, N3)
bundle, sheaf, ream
ソク たば つか (4th, N3)
tree, wood
き モク こ- (1st, N5)
mouth
くち コウ ク (1st, N4)