亜成層圏[aseisouken] substratosphere
漢字文化圏[kanjibunkaken] countries which use Chinese characters
岩石圏[gansekiken] lithosphere
気圏[kiken] atmosphere
共栄圏[kyoueiken] co-prosperity sphere

共産圏[kyousanken] communist bloc
極地圏[kyokuchiken] polar regions
圏外[kengai] outside range
圏内[kennai] within the sphere

峡谷[kyoukoku] glen
溪谷[keikoku] valley
千仭の谷[senjinnotani] bottomless ravine
谷あい[taniai] valley
谷川[tanigawa] mountain stream

谷底[tanisoko] bottom of valley or ravine
幽谷[yuukoku] deep ravine
蟀谷[komekami] temple (of the forehead)
谷まる[kiwamaru] to terminate