谷
たに
tani
= valley / gorge / ravine
Tani means valley in Japanese — the space between mountains, carved by rivers, often dramatic and atmospheric in Japan’s mountainous terrain. The kanji 谷 appears everywhere in Japanese place names, and the word connects to one of Japan’s most resonant geographic realities: a country where 73% of the land is mountainous, making valleys the spaces where most people have always lived.
Tani (谷) is a noun meaning ‘valley,’ ‘gorge,’ or ‘ravine.’ In Japanese geography, tani describes the low-lying terrain between mountains or hills, typically following a river or stream. Common compounds: 谷間 (tanima, valley between mountains / cleavage — the same word is colloquially used for both), 谷底 (tanizoko, valley floor / the very bottom), 谷川 (tanikawa, mountain stream in a valley). The on-reading of 谷 is koku or yoku (谷底 is sometimes read tanizoko or koku-tei in more formal/literary contexts). Many famous Japanese place names incorporate tani or its variants: 渋谷 (Shibuya, ‘astringent valley’), 谷根千 (Yanesen, the name of a historic Tokyo neighborhood grouping).
谷 is one of the most important kanji to recognize for navigating Japan, particularly in Tokyo, where many neighborhoods and train stations contain 谷 or its phonetic variants. Shibuya (渋谷) and its neighboring areas use the -ya reading (a contracted form of tani in some historical name-readings). When you see 谷 in a place name, the reading is usually -tani, -ya, or -dan depending on regional and historical pronunciation. The phrase 谷間の時代 (tanima no jidai, an era of being in the valley) describes a period of stagnation between two peaks — metaphorically as well as geographically.
谷 is a pictograph showing water emerging from between two mountain slopes — a visually intuitive representation of a valley or gorge. The kanji appears in 渋谷 (Shibuya — Tokyo’s famous district, meaning ‘astringent valley’), 幸谷 (Sakutani), and countless other place names. 谷 also appears in the compound 峡谷 (kyoukoku, gorge/canyon), used for dramatic narrow valleys cut by rivers.
Everyday use
山の谷を流れる川の音が心地よかった。
Yama no tani wo nagareru kawa no oto ga kokochi yokatta.
The sound of the river flowing through the mountain valley was soothing.
Casual / Social Media
ハイキングで谷を越えるのが一番きつかった。
Haikingu de tani wo koeru no ga ichiban kitsukatta.
Crossing the valley was the hardest part of the hike.
Formal / Cultural context
黒部峡谷は日本屈指の景勝地として知られています。
Kurobe Kyoukoku wa Nihon kuttshi no keishouchi toshite shirarrete imasu.
The Kurobe Gorge is known as one of Japan’s premier scenic spots.
Valleys (谷, tani) have been the primary human settlement zones throughout Japanese history because Japan’s mountainous terrain — over 70% of the country — left relatively little flat land for cultivation and habitation. The traditional Japanese village (村, mura) was typically sited in a valley where a river provided water and alluvial soil was fertile. This historical geography explains why so many Japanese place names contain 谷 (tani/ya/da) and why valley-based settlement created the distinctive geography of Japanese cities — Tokyo itself developed around a series of hills and valleys, and its neighborhoods still reflect the original topographic logic of ridges and lowlands.
The most famous 谷 in Japan may be 渋谷 (Shibuya), Tokyo’s iconic entertainment and fashion district, whose name means ‘astringent valley’ — referring to the acidic springs that once characterized the low terrain where the Shibuya River flows. The transformation of this literal valley into one of the world’s busiest pedestrian intersections (the Shibuya Scramble Crossing, 渋谷スクランブル交差点) represents one of the most dramatic geographical transformations in modern urban history. Similarly, the Black Gorge (黒部峡谷, Kurobe Kyoukoku) in Toyama Prefecture, accessible by a scenic railway, is one of Japan’s most visited natural landmarks — a reminder that valleys remain central to Japanese encounters with nature.