a guaranteed minimum amount or number used to compute advertising rates, as the number of subscribers to a publication.
a basic amount or number used to compute charges to a customer, as the number of monthly phone calls.
the valuation of property upon which tax rates are based.
9 Surprising Movies That Are Based On Classic LiteratureDid you know these nine movies were actually based on classic literature ... we didn't either.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019