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

 

sinker

 noun
noun
BrE BrE//ˈsɪŋkə(r)//
 
; NAmE NAmE//ˈsɪŋkər//
 
 
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  • a weight that is attached to a fishing line or net to keep it under the water
  • Idioms completely What I said was not true, but he fell for it (= believed it) hook, line and sinker.
    See the Oxford Advanced American Dictionary entry: sinker

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