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Definition of 999 from the Oxford Advanced Learner's Dictionary

999

 
/ˌnaɪn naɪn ˈnaɪn/
 
/ˌnaɪn naɪn ˈnaɪn/
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  1. the phone number used in the UK to call the police, fire or ambulance services in an emergency
    • Dial 999.
perspective
noun
 
 
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