- Official designation for currency in some parts of the world, including Canada, Australia, the United States, Hong Kong, and elsewhere. Its symbol is $.
- (by extension) Money generally.
- Marcella Ridlen Ray, Changing and Unchanging Face of United States Civil Society Television, a favored source of news and information, pulls the largest share of advertising monies. In 1935, newspapers received 45 percent of the advertising dollar, magazines 8 percent, and radio 7 percent.
- 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.
- 1990 October 28, Paul Simon, “Born at the Right Time”, The Rhythm of the Saints, Warner Bros. We like to go down to restaurant row / Spend those euro-dollars / All the way from Washington to Tokyo
- (attributive, 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.)
- 1952 Brigadier Sir Harry Mackeson, House of Commons, London; Hansard vol 504 col 271, 22 July 1952: The restricted purchase of dollar tobacco will, we hope, have the effect of increasing the imports of Turkish and Grecian tobacco
- 1956 The Spectator Vol.197 p.342: For there are two luxury imports that lead all the others : dollar films and dollar tobacco.
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