(finance) An option that can be exercised only at expiry date.

(finance) An option that can be exercised at specific dates between issue date and expiry date. Sometimes known as a mid-Atlantic option.

(finance) an option that can be exercised at any date between the issue date and the expiry date.

(business, often attributive) A business practice in which a customer agrees to have goods or services provided automatically, and must either continue to pay for the service or specifically decline before being rebilled.

plural of option button

(graphical user interface) A radio button.

Alternative spelling of cooption

The ability of local political jurisdictions, typically counties or municipalities, to allow decisions on certain controversial issues, especially the sale of alcohol, based on popular vote within their borders.

(idiomatic) In resolving a problem, the possible course of action that is considered the most extreme because of its collateral consequences.

(US, politics, historical) A 1980s plan whereby all Soviet and American nuclear weapons would be mutually withdrawn from Europe.