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Definition of rubber duck noun from the Oxford Advanced Learner's Dictionary

rubber duck

noun
 
/ˌrʌbə ˈdʌk/
 
/ˌrʌbər ˈdʌk/
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  1. a plastic toy in the shape of a duck, usually yellow, for playing with in the bath
    • The baby loves playing with a rubber duck in the bath.
  2. (South African English, informal) a small boat made of rubber that is filled with air, especially one with a motor
    • Four of us were fishing from a rubber duck when the storm hit.
trait
noun
 
 
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