navigational chart

Noun

(nautical) Synonym of nautical chart (“maritime map showing characteristics which are relevant for seafarers”)

Japanese Meaning

航海図 - 海図とも呼ばれ、船舶の航行に必要な海上の情報（海流、深度、危険区域、灯台の位置など）が詳細に示された地図。

Before heading into the fog, the captain checked the navigational chart to verify the shipping lanes and nearby hazards.

濃霧の中に入る前に、船長は海図を確認して航路や近くの危険箇所を確かめた。

Sense（1）

(nautical) Synonym of nautical chart (“maritime map showing characteristics which are relevant for seafarers”)

navigational charts

（ plural ）