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English definition of “9/11”

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9/11

uk   /ˌnaɪn.ɪˈlev.ən/ mainly US us  
September the eleventh, written in US style: the date of the attacks on the World Trade Center and the Pentagon in the US in 2001: Since 9/11 there has been more cooperation between Russia and America.
Translations of “9/11”
in Chinese (Traditional) (2001年美國發生的) 9/11 事件…
in Chinese (Simplified) (2001年美国发生的) 9/11 事件…
(Definition of 9/11 from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
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