a good naturally available in such abundance that the quantity available at a price of zero exceeds the quantity demanded
a good of which the quantity available is so large than no one wants to have more
a good that yields zero marginal use value
a good which requires no labor in order to be produced
a good whose amount available is greater than the amount people want at a zero price
A good which is abundant and costless.
The free good is a term used in economics to describe a good that is not scarce. A free good is available in as great a quantity as desired with zero opportunity cost to society.