Synonyms for Dam (same or very similar meaning)
WordNet sense 1 (a metric unit of length equal to ten meters):
decameter, decametre, dekameter, dekametre, dkm, decameterWordNet sense 2 (a barrier constructed to contain the flow of water or to keep out the sea):
dikeWordNet sense 3 (obstruct with, or as if with, a dam):
dam upFrom the ODE community, based on WordNetadd/edit