Dollar has these meanings:

• Dollar, a unit of currency
  • Australian dollar
  • Bahamian dollar
  • Belize dollar
  • Brunei dollar
  • Canadian dollar
  • East Caribbean dollar
  • Hong Kong dollar
  • International dollar
  • Namibian dollar
  • New Zealand dollar
  • Singapore dollar
  • Suriname dollar
  • New Taiwan dollar
  • United States dollar
  • Zimbabwe dollar
• Petro-dollars is money from petroleum.
• Dollar was a light pop duo from the UK, who had a series of hit records in the late 1970s. They were David Van Day and Theresa Bazar .
• The sand dollar is a close cousin of the sea urchin.
• A small town in Clackmannanshire, Scotland. Attractions nearby include Castle Campbell and the Dollar Academy.
• In nuclear reactor kinetics one dollar is the increase in reactivity between 'critical' and 'prompt critical'. See nuclear chain reaction
• The Dollar is a historical French made motorcycle.