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PIN definition: a small, slender, often pointed piece of wood, metal, etc., used to fasten, support, or attach things. See examples of pin used in a sentence.

Definition of pin noun in Oxford Advanced American Dictionary. Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more.

Dec 18, 2025 · pin (plural pins) A needle without an eye (usually) made of drawn-out steel wire with one end sharpened and the other flattened or rounded into a head, used for fastening. …

Define pin. pin synonyms, pin pronunciation, pin translation, English dictionary definition of pin. abbr. personal identification number n. 1. a. A short, straight, stiff piece of wire with a blunt …

PIN meaning: 1. a small thin piece of metal with a point at one end, especially used for temporarily holding…. Learn more.

Someone's PIN or PIN number is a secret number which they can use, for example, with a bank card to withdraw money from a cash machine or ATM. PIN is an abbreviation for 'personal …

A little piece of stiff wire with a pointed end and a flattened or rounded head, used for fastening things together or holding them in place; straight pin.

Jan 2, 2015 · The meaning of PIN is a piece of solid material (such as wood or metal) used especially for fastening things together or as a support by which one thing may be suspended …

A pin is a small, sharp device that's made for attaching and holding things together. When you sew a shirt, you first have to pin the paper pattern to the fabric with pins.