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Definition of BO noun from the Oxford Advanced Learner's Dictionary

BO

noun
 
/ˌbiː ˈəʊ/
 
/ˌbiː ˈəʊ/
[uncountable]
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  1. an unpleasant smell from a person’s body, especially of sweat (the abbreviation for ‘body odour’)
    • She's got BO.
See BO in the Oxford Advanced American Dictionary
Check pronunciation: BO

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