also: かいしょう
noun, noun which may take the genitive case particle 'no'
on the sea; maritime; surface of the sea
Refers to the sea surface or to things happening on the sea, often in contrast with land or air. Common in compounds like 海上交通 (maritime traffic) and 海上自衛隊 (Maritime Self-Defense Force).
The sea was calm and the ship sailed smoothly.
The Japan Coast Guard headed to the rescue.
A small boat was floating on the sea.
A cargo ship is sailing across the sea.
An accident occurred at sea due to the typhoon.
marine traffic; sea traffic
maritime safety; coast guard (general concept) · Japan Coast Guard (abbreviation)