そとぼり 外堀 Wanikani level 40 Play audio LinksSentence search for 外堀Sentence search for そとぼりSentence search for 外濠Sentence search for 外壕Kanji details for 外 and 堀Edit in JMdict Noun1. outer moat (of a castle)Place2. SotoboriOther forms外濠 【そとぼり】、外壕 【そとぼり】Notes外壕: Rarely-used kanji form. Discussions Log in to talk about this word.