rate rate /ˈreɪt/

noun

1. () A magnitude or frequency relative to a time unit  ( rate )
   a magnitude or frequency relative to a time unit
    They traveled at a rate of 55 miles per hour
   they traveled at a rate of 55 miles per hour
    The rate of change was faster than expected
   the rate of change was faster than expected
   
2. () Amount of a charge or payment relative to some basis  ( charge per unit , rate )
   amount of a charge or payment relative to some basis
    A 10-minute phone call at that rate would cost $5
   a 10-minute phone call at that rate would cost $5
   
3. () The relative speed of progress or change  ( rate , pace )
   the relative speed of progress or change
    He lived at a fast pace
   he lived at a fast pace
    He works at a great rate
   he works at a great rate
    The pace of events accelerated
   the pace of events accelerated
   
4. A quantity or amount or measure considered as a proportion of another quantity or amount or measure  ( rate )
   a quantity or amount or measure considered as a proportion of another quantity or amount or measure
    The literacy rate
   the literacy rate
    The retention rate
   the retention rate
    The dropout rate
   the dropout rate
   

verb

1. () Assign a rank or rating to  ( order , range , grade , place , rank , rate )
   assign a rank or rating to
    How would you rank these students?
   how would you rank these students?
    The restaurant is rated highly in the food guide
   The restaurant is rated highly in the food guide
   
2. () Be worthy of or have a certain rating  ( rate )
   be worthy of or have a certain rating
    This bond rates highly
   This bond rates highly
   
3. () Estimate the value of  ( value , rate )
   estimate the value of
    How would you rate his chances to become President?
   How would you rate his chances to become President?
    Gold was rated highly among the Romans
   Gold was rated highly among the Romans