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English definition of “pin”

pin

noun [C] (METAL STICK)    /pɪn/
B1 a small thin piece of metal with a point at one end, especially used for temporarily holding pieces of cloth together: I'll keep the trouser patch in place with pins while I sew it on.Knitting and sewingPins, clips, hooks and pegs a thin piece of metal: If you pull the pin out of a hand-grenade, it'll explode. Is it a two-pin plug or a three-pin plug? Doctors inserted a metal pin in his leg to hold the bones together.Knitting and sewing a decorative object, used as jewellery: a hat/tie pinJewellery US for broochJewellery
(Definition of pin noun (METAL STICK) from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)
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