JMdict: 1204120

外堀 【そとぼり】

  1. [n] outer moat (of a castle)
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Kanji in this word:

Kanji Meanings On Readings Kun Readings
外 Outside ガイ, ゲ そと, ほか, はず.す, はず.れる, と-
堀 Ditch, Moat, Canal クツ ほり