Possible Definitions:
1. Dollar (n.) A silver coin of the United States containing 371.25 grains of silver and 41.25 grains of alloy, that is, having a total weight of 412.5 grains.
2. Dollar (n.) A gold coin of the United States containing 23.22 grains of gold and 2.58 grains of alloy, that is, having a total weight of 25.8 grains, nine-tenths fine. It is no longer coined.
3. Dollar (n.) A coin of the same general weight and value, though differing slightly in different countries, current in Mexico, Canada, parts of South America, also in Spain, and several other European countries.
4. Dollar (n.) The value of a dollar; the unit commonly employed in the United States in reckoning money values.
