Definitions from Wiktionary ( )

▸ noun:  (numismatics) Official designation for currency in some parts of the world, including Canada, the United States, Australia, New Zealand, Singapore, Hong Kong, and elsewhere. Its symbol is $.
▸ noun:  (by extension) Money generally.
▸ noun:  (UK, colloquial, historical) 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.
▸ noun:  (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.)
▸ noun:  (nuclear physics) A unit of reactivity equal to the interval between delayed criticality and prompt criticality.
▸ noun:  A small town in Clackmannanshire council area, Scotland (OS grid ref NS9698)
▸ noun:  An unincorporated community in Coosa County, Alabama, United States.
▸ noun:  A former community in Ontario, Canada, now part of the city of Markham.
▸ noun:  A surname.

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