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English definition of “pin”

pin

noun [C]  /pɪn/ us  

pin noun [C] (FASTENER)

a thin piece of stiff wire with a pointed end that you can stick through two things to fasten them together: Mary put a pin in her hair to hold her hat on. A pin can also be decorative and used as jewelry: She wore a beautiful gold pin on her coat.

pin

verb  /pɪn/ (-nn-) us  

pin verb (HOLD FIRMLY)

[T always + adv/prep] to hold someone or something firmly in the same position or place: After the earthquake there were several people pinned in the wreckage. fig. No one could pin the label of "conservative" on him (= call him that).

pin verb (FASTENER)

[T] fastened: She kept a map of Manhattan pinned on the wall.
(Definition of pin noun, verb from the Cambridge Academic Content Dictionary © Cambridge University Press)
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