谷間・谷あい|たにまtanima[0]heiban (flat)

1. nounvalley; ravine; gorge; chasm
   あの人ひとたちの小屋こやは谷間たにまにある。↗

   Their hut is situated in the valley.
2. nouncleavage (of breasts)
   優美子ゆみこには谷間たにまを強調きょうちょうするブラジャーがある。↗

   Yumiko has a push-up bra.
3. nounpart or place that has been left behind; blind spot; bottom (of society); (economic) trough; gap (in activity, one's work, etc.); lull; opening

• Synonym谷たにNeutralThe most common word for a valley as landform. 「谷間」 stresses the ground between mountains and also covers figurative gaps — places caught in between and overlooked.
• Synonym渓谷けいこくNeutralA valley with a stream running through it, used with an eye to the scenery, as in 「渓谷美」.
• Synonym山峡さんきょうWrittenA written/formal term for a gorge or pass between mountains, stressing steep, rugged terrain.
• Antonym山頂さんちょうNeutralThe summit of a mountain — the high point opposite the low-lying 「谷間」.
• Antonym頂上ちょうじょうNeutralTop or summit, also used figuratively for the peak of something — the counterpart of 「谷間」's low point.
• Antonym峰みねNeutralA mountain peak or ridge; the high ground set against the valley of 「谷間」.

Use 「谷間」 for the land between two mountains, or figuratively for a spot caught in between or a low point, as in 「ビルの谷間」 and 「景気の谷間」. For terrain in general say 「谷」; for a scenic stream valley, 「渓谷」. The opposites are 「山頂」 and 「峰」.

Usage comparisons are AI-assisted and cross-checked by multiple models; for study reference only

1. 「たにあい」の漢字かんじまじり表記ひょうき。