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1. A barrier constructed to contain the flow of water or to keep out the sea
   - dike, dyke
    
2. A metric unit of length equal to ten meters
   - decameter [US], dekameter [US], decametre [Brit, Cdn], dekametre [Cdn], dkm
    
3. Female parent of an animal especially domestic livestock

1. Obstruct with, or as if with, a dam
   "dam the gorges of the Yangtse River"; "dam up the gorges of the Yangtse River"
   - dam up

Sounds like: damn

Derived forms: damming, dammed, dams

Type of: barrier, block, close up, female, impede, jam, metric linear unit, obstruct, obturate, occlude

Part of: hectometer [US], hectometre [Brit, Cdn], hm

Encyclopedia: Dam