This is the 9035th most frequent Japanese word.
海運
Maritime transportation or shipping.
The term '海運' refers to the maritime transportation industry in the context of this sentence.
海運業は経済にとって重要です。
The maritime industry is important for the economy.
Here, '海運' is used to indicate the mode of transportation, which is maritime shipping.
その商品は海運で届けられます。
The goods will be delivered via maritime shipping.
The phrase '海運' is used to denote the field of maritime transportation or shipping in general within the context of the sentence.