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Definition of registration number noun from the Oxford Advanced Learner's Dictionary

registration number

noun
 
/ˌredʒɪˈstreɪʃn nʌmbə(r)/
 
/ˌredʒɪˈstreɪʃn nʌmbər/
(also registration)
(both British English)
(North American English license (plate) number)
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  1. the series of letters and numbers that are shown on a number plate at the front and back of a vehicle to identify it
    • I gave the registration number of the car to the police.
    Topics Transport by car or lorryc2
    Oxford Collocations DictionaryRegistration number is used after these nouns:
    • vehicle
    See full entry

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