Inland sea and Lough

Inland sea noun - An arm of the Pacific Ocean in southern Japan; surrounded by the islands of Honshu and Shikoku and Kyushu and linked to the Sea of Japan by a narrow channel; the chief port is Hiroshima.

Lough and inland sea are semantically related. In some cases you can use "Lough" instead a noun phrase "Inland sea".

Lough noun - Irish word for a lake.

Inland sea and lough are semantically related. You can use "Inland sea" instead a noun "Lough".