Definition of "Rate" :
noun: the relative speed of progress or change
"He works at a great rate."
noun: amount of a charge or payment relative to some basis
"A 10-minute phone call at that rate would cost $5."
noun: a quantity or amount or measure considered as a proportion of another quantity or amount or measure
"The literacy rate."
noun: a magnitude or frequency relative to a time unit
"They traveled at a rate of 55 miles per hour."
verb: assign a rank or rating to
"The restaurant is rated highly in the food guide."
verb: estimate the value of
"How would you rate his chances to become President?."
verb: be worthy of or have a certain rating
"This bond rates highly."