sea and mountains; the great outdoors
Refers literally to the sea and mountains, often evoking nature, the outdoors, or a vast landscape. Can also imply a great quantity or variety, as in 海山の幸 (bounty of sea and mountains).
This region is blessed with the bounty of sea and mountains.
I like spending my days off in the great outdoors.
noun which may take the genitive case particle 'no'
Used metaphorically to describe something as vast or deep, such as love, gratitude, or debt. Often appears in fixed expressions like 海山の恩 (immense obligation) or 海山の愛情 (deep affection).
I owe him an immense debt of gratitude.
I was raised with profound love.
Standard kanji spelling; common in news and literary contexts.
Kana spelling is acceptable, especially in casual writing or when the metaphorical sense is emphasized.
Compound of 海 (うみ, 'sea') and 山 (やま, 'mountain'). The metaphorical sense of 'immense' likely derives from the vastness of the sea and mountains.