せんぱく船舶senpaku
1.

A general term referring to vessels designed for navigating on water, encompassing various types including cargo and passenger ships.

2.

A means of transportation that carries people or goods over water, specifically those employed for commercial activities in maritime law, excluding smaller rowboats.

3.

Any watercraft used for maritime navigation, reflecting a broader categorization beyond just common boats, often involving larger and more complex structures.

Example:

懐中電灯は、船舶同士とか、街の通りを走っている自動車に向けて合図を伝える。

せんぱくぎょう船舶業senpakugyou
1.

The sector of the economy that involves the design, construction, operation, and management of ships used for transporting goods and passengers over water.

2.

The collective activities and businesses related to maritime transport, including the logistics of moving products via vessels and the services supporting such operations.

3.

An industry focused on the deployment of vessels for commercial purposes, encompassing everything from shipbuilding to shipping services and international trade.