外堀[sotobori] outer moat (castle)
堀り抜く[horinuku] to dig through
根堀り葉堀り[nehorihahori] thoroughly
堀り鼠[horinezumi] pocket gopher
堀散らす[horichirasu] to dig up messily

堀川[horikawa] canal
内堀[uchibori] inner moat
釣堀[tsuribori] fish pond
堀り返す[horikaesu] to dig up

威張り散らす[ibarichirasu] to domineer
胃散[isan] stomach medicine
逸散に[issanni] at top speed
一目散[ichimokusan] at full speed
一目散に[ichimokusanni] at full speed

雲散霧消[unsanmushou] vanishing like mist
解散[kaisan] breakup
拡散[kakusan] scattering
閑散[kansan] deserted (esp. store, market, town, streets)
言散らす[iichirasu] to spread (a report)