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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.

A pin is a device used for fastening objects or material together. Search for "pin" , "pi-n", "p-in", or "p-i-n" on Wikipedia.

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

PINs are generally only decimal digits. A memorized secret typically consisting of only decimal digits. A secret number that a cardholder memorizes and uses to authenticate his or her identity as part of …

Jul 30, 2025 · Unfortunately, it can be difficult to find that perfect pin. Luckily, it is easy to make a pin using a few supplies from around your home and a flat backed safety pin.