えん堤[entei] dam
手堤[tesage] handbag
堤防[teibou] bank
堤出[teishutsu] to present
突堤[tottei] breakwater

防波堤[bouhatei] breakwater
墨堤[bokutei] banks of the Sumida river
防潮堤[bouchoutei] tide embankment
築堤[chikutei] embankment

堰堤[entei] dam
可動堰[kadouzeki] canal gates
堰き止める[sekitomeru] to dam up
堰く[seku] to dam (up) (stream)
井堰[iseki] dam

堰き止湖[sekitomeko] dammed lake (formed by natural damming of a river, esp. by landslide, volcanic eruption, etc.)
堰板[sekiita] sheeting
堰を切ったよう[sekiwokittayou] gushing forth
堰を切る[sekiwokiru] to break a dam and gush forth
堰塞[ensoku] damming (e.g. a pond)