三さん大たい洋よう

noun

three great oceans

Refers specifically to the Pacific, Atlantic, and Indian Oceans. Rare term; more commonly encountered in geographical or educational contexts. Compare with 五大洋 (the five oceans including the Arctic and Southern Oceans).

See also: 五大洋

• 三さん大たい洋ようとは、太たい平へい洋よう、大たい西せい洋よう、インド洋ようのことです。

  The three great oceans are the Pacific, Atlantic, and Indian Oceans.