·noun The value of a dollar; the unit commonly employed in the United States in reckoning money values.
II. Dollar ·noun 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.
III. Dollar ·noun 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.
IV. Dollar ·noun 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.