Dollar definition

A coin or note that is worth one dollar.

The basic monetary unit of the U.S., equal to 100 cents.

The Mexican peso.

(obs.) A Spanish coin (piece of eight) used in American Revolutionary times.

The currency unit of the United States, comprised of 100 cents. Traders shorten it to USD. The U.S. dollar is the world’s most frequently used currency in business transactions. Even transactions not involving a U.S. party often are cited in dollars. The dollar is also the name for the currency unit of Antigua, Australia, Bahamas, Barbados, Belize, Brunei, Canada, Dominica, Fiji, Grenada, Guyana, Hong Kong, Jamaica, Liberia, Marshall Islands, Micronesia, Namibia, Nauru, New Zealand, Palau, Saint Kitts and Nevis, Saint Lucia, Saint Vincent and the Grenadines, Singapore, Solomon Islands, Taiwan, Turk and Caicos, Trinidad and Tobago, Tuvalu, and Zimbabwe.

Colloquially in the United Kingdom, a quarter of a pound or one crown, historically minted as a coin of approximately the same size and composition as a then-contemporary dollar coin of the United States, and worth slightly more.

(historical) Imported from the United States, and paid for in U.S. dollars. (Note: distinguish "dollar wheat", North American farmers' slogan, meaning a market price of one dollar per bushel.)

Any of the standard monetary units of various other countries, as of Australia, Barbados, and Canada.

A coin or piece of paper money of the value of a dollar.