DAMS

noun

1. A structure placed across a flowing body of water to stop the flow or part of the flow, generally for purposes such as retaining or diverting some of the water or retarding the release of accumulated water to avoid abrupt flooding.
2. The water reservoir resulting from placing such structure.
3. A device to prevent a tooth from getting wet during dental work, consisting of a rubber sheet held with a band.

verb

1. To block the flow of water.

noun

1. Female parent, mother, generally regarding breeding of animals (correlative to sire).
2. A kind of crowned piece in the game of draughts.