The noun rate has 4 senses (first 3 from tagged texts)
1. (246) rate, charge per unit -- (amount of a charge or payment relative to some basis; "a 10-minute phone call at that rate would cost $5")
2. (242) rate -- (a magnitude or frequency relative to a time unit; "they traveled at a rate of 55 miles per hour"; "the rate of change was faster than expected")
3. (35) pace, rate -- (the relative speed of progress or change; "he lived at a fast pace"; "he works at a great rate"; "the pace of events accelerated")
4. rate -- (a quantity or amount or measure considered as a proportion of another quantity or amount or measure; "the literacy rate"; "the retention rate"; "the dropout rate")
Overview of verb rate
The verb rate has 3 senses (first 3 from tagged texts)
1. (9) rate, rank, range, order, grade, place -- (assign a rank or rating to; "how would you rank these students?"; "The restaurant is rated highly in the food guide")
2. (2) rate -- (be worthy of or have a certain rating; "This bond rates highly")
3. (1) rate, value -- (estimate the value of; "How would you rate his chances to become President?"; "Gold was rated highly among the Romans")