Definitions of penny:

• noun:   a coin worth one-hundredth of the value of the basic unit
• noun:   a fractional monetary unit of Ireland and the United Kingdom; equal to one hundredth of a pound
• name:  A female given name (common: 1 in 1408 females; popularity rank in the U.S.: #271)
• name:  A surname (rare: 1 in 25000 families; popularity rank in the U.S.: #3218)