American English

Definition of buoy noun from the Oxford Advanced American Dictionary

 

buoy

 noun
noun
NAmE//ˈbui//
 
, NAmE//bɔɪ//
 
 
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an object that floats on the ocean or a river to mark the places where it is dangerous and where it is safe for boats to go see also lifebuoy
See the Oxford Advanced Learner's Dictionary entry: buoy

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