side of a ship; ship's side
Refers to the lateral exterior surface of a vessel. A straightforward nautical term.
A large hole opened in the side of the ship.
乗客は船側から海を眺めていた。
The passengers were looking at the sea from the ship's side.
free alongside ship; FAS
Compound of 船 (ship) and 側 (side). The reading せんそく is the on'yomi for both characters.