noun
Tōkai region; central Pacific-side region of Honshu
Refers to the Tōkai region of Honshu, commonly including Aichi, Shizuoka, Mie, and southern Gifu. Often used in weather, transport, business, and regional news contexts; 東海地方 is the fuller expression.
See also: 東海地方
明日は東海で大雨になる見込みです。
Heavy rain is expected in the Tōkai region tomorrow.
Tōkai is a region where the automobile industry is thriving.
noun
eastern sea; sea to the east
Literal Sino-Japanese use meaning a sea lying to the east. In ordinary modern prose, 東の海 is often more transparent, while 東海 tends to sound compact, formal, or name-like.
古い地理書では、その国の東に広がる海を東海と呼んでいる。
In the old geography book, the sea spreading east of that country is called the eastern sea.
noun
Tōkaidō; Edo-period Edo-Kyoto highway
Historical abbreviated use for 東海道, especially the Edo-period highway linking Edo and Kyoto. This is not the usual modern way to refer to the road or route.
See also: 東海道
江戸時代の資料では、東海道を略して東海と記すことがある。
In Edo-period materials, Tōkaidō is sometimes abbreviated and written as 東海.
noun
Archaic and poetic use for Japan, especially in literary or classical-style contexts. Modern Japanese normally uses 日本 or similar names instead.
古典や漢詩では、東海が日本を指すことがある。
In classical texts and Chinese-style poetry, 東海 can refer to Japan.