mph Definition in the Cambridge English Dictionary
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Definition of “mph” - English Dictionary

Definition of "mph" - American English Dictionary

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mphplural noun [C]

(plural mph)
abbreviation formilesperhour (= the ​number of ​miles a ​vehicletravels in one ​hour, a ​measure of ​itsspeed): The ​speedlimit is 55 mph.
(Definition of mph from the Cambridge Academic Content Dictionary © Cambridge University Press)

Definition of "mph" - British English Dictionary

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mph

uk   us   /ˌem.piːˈeɪtʃ/
abbreviation formilesperhour: My ​car won't do/go more than 70 mph. She was ​caughtdriving at 120 mph.
(Definition of mph from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)

Definition of "mph" - Business English Dictionary

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mphnoun

uk   us   TRANSPORT
abbreviation for milesper hour: a way of ​calculating the ​speed at which a ​vehicle or ​plane is ​travelling or can ​travel: 30/150/200, etc. mph 'Bullet ​trains' in ​Europe and Asia can ​achieve a cruising ​speed of 185 mph.
(Definition of mph from the Cambridge Business English Dictionary © Cambridge University Press)
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