also: とうかい
noun
East Sea; Sea of Japan (Korean name)
Korean-derived name for the body of water between Japan and the Korean Peninsula. In Japanese contexts, 日本海 is the standard term; 東海 is used primarily when referring to the Korean perspective or in discussions of naming disputes.
from Korean donghae
See also: 日本海
韓国では、日本海のことを東海と呼ぶ。
In South Korea, the Sea of Japan is called the East Sea.
国際的な地図では、東海と日本海が併記されることもある。
On international maps, both East Sea and Sea of Japan are sometimes written together.
The standard Japanese name for the same body of water. 東海 is the Korean name, used in Japanese mainly when discussing the Korean viewpoint or the naming controversy.
From Korean 동해 (donghae), meaning 'East Sea'. The kanji 東海 literally mean 'east sea'. The reading トンヘ is a direct borrowing of the Korean pronunciation.