Check also 溝
Names and idioms with total stroke of 28:
吃驚 間簑 宇根越 道中筋 芝大神宮
Names and idioms similar to 溝を掘る:
掘立て小屋 音溝 溝蓋 番掘 御掘串
Yojijukugo(idioms with 4 Kanji characters) including 溝を掘る:
深溝高塁 削株掘根 羅雀掘鼠
Proverbs including 溝を掘る:
墓穴を掘る 渇に臨みて井を掘る 蟹は甲羅に似せて穴を掘る