noun
Japan's Three Famous Mountains
Refers specifically to Mt. Fuji, Mt. Tate, and Mt. Haku. A set phrase in Japanese geography and culture.
See also: 三名山
日本三名山は富士山、立山、白山です。
Japan's Three Famous Mountains are Mt. Fuji, Mt. Tate, and Mt. Haku.
三名山 is the generic term for 'three famous mountains', while 日本三名山 is the specific set of three mountains in Japan.
Compound of 日本 (Japan) + 三 (three) + 名山 (famous mountains). A conventional designation for three historically and culturally significant mountains.