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hook

 
 
/hʊk/ noun

Definition

[C] a curved piece of metal or plastic used for hanging something on, or a similar object used for catching fish: His coat was hanging from a hook on the door.
off the hook If a telephone is off the hook, the part you speak into is not in its correct position, so the telephone will not ring.
a left/right hook when you hit someone hard with your left/right hand
(Definition of hook noun from the Cambridge Learner's Dictionary © Cambridge University Press)

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