内ない海かい

noun

inland sea; inlet; gulf; bay

Refers to a body of water largely surrounded by land, such as the Seto Inland Sea (瀬戸内海). Can also be used for smaller inlets and bays.

• 瀬せ戸と内ない海かいは日本にほんで一いち番ばん大おおきな内ない海かいです。

  The Seto Inland Sea is the largest inland sea in Japan.

• この内ない海かいにはたくさんの小ちいさな島しまがある。

  There are many small islands in this inland sea.

noun

lake

Only with reading うちうみ

Archaic meaning, now largely replaced by 湖 (みずうみ). Found in old texts or place names.

• 古ふるい文ぶん献けんでは、内うち海うみが湖みずうみを指さすことがある。

  In old documents, 内海 (うちうみ) can refer to a lake.