light buoy

Noun

(nautical) A buoy with a light on top which is lit at night to aid navigation.

Japanese Meaning

夜間の航行を支援するため、上部に灯りが備えられた浮標（航行補助灯付き浮標）

The captain ordered a course change when the light buoy appeared on the horizon.

船長は灯火付きブイが水平線に現れたとき、進路を変えるよう命じた。

Sense（1）

(nautical) A buoy with a light on top which is lit at night to aid navigation.

light buoys

（ plural ）