Dam

1. n. A firebrick wall, or a stone, which forms the front of the hearth of a blast furnace.
2. n. A female parent; — used of beasts, especially of quadrupeds; sometimes applied in contempt to a human mother.
3. n. A kind or crowned piece in the game of draughts.
4. n. A barrier to prevent the flow of a liquid; esp., a bank of earth, or wall of any kind, as of masonry or wood, built across a water course, to confine and keep back flowing water.

The word meanings were obtained from OPTED(The Online Plain Text English Dictionary), which is based on “The Project Gutenberg Etext of Webster’s Unabridged Dictionary” which is in turn based on the 1913 US Webster’s Unabridged Dictionary (See Project Gutenburg), as a text file.