n. | 1. well number, the number of an oil well 2. pound sign (#), the symbol # that appears on keyboards and telephones 3. hash (#), the symbol # that appears on keyboards and telephones, mainly used in British English 4. number sign (#), the designation of a number, e.g. "#1" stands for "number one" 1. well number, the number of an oil well 2. pound sign (#), the symbol # that appears on keyboards and telephones 3. hash (#), the symbol # that appears on keyboards and telephones, mainly used in British English 4. number sign (#), the designation of a number, e.g. "#1" stands for "number one" |