コク, たに, きわ.まる, がい, がえ, がや, せ, たり, たん, や

valley

JLPT2 G2 S7 F508

As per # (cavity) + split right and left (doubled) → a circular cavity in the earth from which water spouts → *sunken fountainhead*; *valley*; *ravine*; *canyon* (← sunken spot).

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