尾根|おねone[1]atamadaka (head-high)

1. noun(mountain) ridge

• SynonymリッジNeutralLoanword for a ridge; also covers a meteorological high-pressure ridge, so it leans technical. For everyday hiking, 「尾根」 is the usual word.
• Synonym稜線りょうせんNeutralRefers to the line a ridge traces, as in 「稜線が美しい」 or 「稜線を歩く」; stresses the line itself, and is common in hiking too.
• Related山の背やまのせWrittenA native Japanese word for a mountain ridge with a descriptive flavor; written in tone and rarely used.
• Related山稜さんりょうWrittenMeans a mountain ridge or range; a written, geography-flavored term that sees little use in speech.
• Antonym谷たにNeutralA valley — low ground between high land, the opposite of the raised 「尾根」.
• Antonym沢さわNeutralA mountain stream valley; a hiking term set against 「尾根」, as in 「沢登り」.

For a ridge linking peaks, say 「尾根」, as in 「尾根道」 or 「尾根を歩く」. For the line of the ridge use 「稜線」 (also 「稜線を歩く」); for a meteorological high-pressure ridge, 「リッジ」. The opposites are 「谷」 and 「沢」.

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

1. 山やまの頂いただきと頂いただきとを結むすんで連つらなる部分ぶぶん。