7/7
noun/ˌsevn ˈsevn/
/ˌsevn ˈsevn/
(British English)- the abbreviation for the date 7 July, 2005, when several bomb attacks took place in London
- a survivor of the 7/7 bombings
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7/7
Definition of 7/7 noun from the Oxford Advanced Learner's Dictionary