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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.

noun [ C ] uk / pɪn / us (also PIN number, uk us ) abbreviation for Personal Identification Number: the secret number that allows you to use a bank card in a machine

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.

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

Sep 19, 2025 · A personal identification number (PIN) is a numerical code used to authenticate a user's identity during electronic financial transactions, primarily associated with payment cards.

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 …

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 …

Feb 19, 2024 · When you use a card at an ATM or to make a payment, you’re often asked for your card’s personal identification number (PIN). But what exactly is a PIN used for? And how …

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