Transport of goods or passengers by sea, or the shipping industry involved in such transport (shipping companies, ports, maritime logistics).
世界の貿易の多くは海運によって支えられている。
Much of world trade is supported by maritime shipping.
海運会社は燃料費の高騰で運賃を引き上げた。
The shipping company raised freight rates due to rising fuel costs.
港湾の整備は海運業の発展に欠かせない。
Improving ports is essential for the development of the maritime industry.