高こう層そう階かい

noun

upper floor; high floor

Refers to floors high up in a multi-story building, typically a high-rise. Often used in real estate, views, or safety contexts.

• 高こう層そう階かいの部屋へやは眺ながめがいい。

  Rooms on the upper floors have a good view.

• 地じ震しんのとき、高こう層そう階かいほど揺ゆれが大おおきい。

  During an earthquake, the higher the floor, the stronger the shaking.