what is dam
Definition of DAM. 1. : a body of water confined by a barrier. 2. a: a barrier preventing the flow of water or of loose solid materials (as soil or snow); especially: a barrier built across a watercourse for impounding water b: a barrier to check the flow of liquid, gas, or air.earn More About DAM. Thesaurus: All synonyms and antonyms for dam. Spanish Central: Spanish translation of dam. Nglish: Translation of dam for Spanish speakers. Britannica English: Translation of dam for Arabic speakers.