正せい西せい

noun

due west

Refers to the exact cardinal direction west, often used in navigation, geography, or formal contexts.

• この道みちをまっすぐ行いくと、正せい西せいに向むかいます。

  If you go straight along this road, you'll head due west.

• 台たい風ふうは正せい西せいに進すすんでいる。

  The typhoon is moving due west.