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rat
rat-a-tat-tat
rat-arsed
rat-bite fever
rat-catcher
rat cheese
rat hole
Rat Islands
rat on
rat pack
rat race
rat’s nest
rat’s tail cactus
rat snake
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rate

rate [ rayt ]


noun  (plural rates)
Definition:
 
1. speed: the speed at which one measured quantity happens in relation to another measured amount such as time

2. amount in relation to standard figure: the amount, frequency, or speed of something expressed as a proportion of a larger figure or in relation to a whole
The dropout rate at the end of the first year is around one in three.

3. commerce charge: the amount of money charged per unit, e.g. per hour, per page, or per thousand, for a job, service, or commodity
I'm charging you the going rate for the job.

4. navy rank of rating: the rank of rating in a navy, especially the British Royal Navy



plural noun rates 
Definition:
 
U.K. former local tax: formerly in the United Kingdom, a tax levied by local authorities on all properties in their areas of jurisdiction, based on a fixed ratable value for each property



verb  (past and past participle rat·ed, present participle rat·ing, 3rd person present singular rates)
Definition:
 
1. transitive verb set value on something: to calculate or appraise the value of something
How would you rate this gem collection?

2. transitive and intransitive verb assess something or be assessed: to have a particular value, position, or importance relative to other people or things, or be regarded as having this
This rates as undoubtedly the worst movie I have ever seen.

3. transitive verb deserve something: to deserve or be worthy of something
Her latest book didn't even rate a review.

4. transitive verb classify something: to give a particular classification or rating to something such as a machine, identifying its performance capabilities and limits

5. transitive verb finance value something for tax purposes: to value something, especially a property, for tax purposes

[15th century. Via French< medieval Latin (pro) rata (parte) "(according to a) fixed (part)" < Latin ratus, past participle of reri "calculate"]

at any rate used to indicate that an important point is true, whatever other considerations there may be


Word History

The Latin word reri "to calculate," from which rate is derived, is also the source of English ratify, ration, and reason.

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