American English

Definition of dam verb from the Oxford Advanced American Dictionary



dam something (up)Verb Forms present simple I / you / we / they dam
he / she / it dams
past simple dammed
-ing form damming
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to build a dam across a river, especially in order to make an artificial lake for use as a water supply, etc. plans to dam Colorado's South Platte River
See the Oxford Advanced Learner's Dictionary entry: dam