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."