backstroke
noun /ˈbækstrəʊk/
  /ˈbækstrəʊk/
 (British English also backcrawl)
 [uncountable, singular]- a style of swimming in which you lie on your back enlarge image enlarge image- Can you do (the) backstroke?
- He won the 100 metres backstroke (= the race).
 Oxford Collocations DictionaryBackstroke is used before these nouns:- event
 
