Definition

1. Noun:
   • A secret numeric password used for authentication: A "pin number" is a personal identification number, typically a short sequence of digits, used to verify a user's identity to gain access to a secure system, such as a bank account or a device.

Usage Examples

• Noun:
  • Please enter your four-digit pin number at the ATM.
  • I forgot my pin number and couldn't access my online banking.
  • For security, never share your pin number with anyone.

Advanced Usage

• "PIN" as an acronym: The term is often shortened to "PIN," which stands for "Personal Identification Number." Therefore, saying "pin number" is technically redundant, as it means "personal identification number number," but the full phrase is commonly used in everyday speech.
  • The system requires your PIN to authorize the transaction.

Variants and Related Words

• PIN (n): The standard acronym for Personal Identification Number.
  • Your card's PIN should be memorized, not written down.
• Passcode (n): A more general term for a secret sequence of numbers, letters, or symbols used to gain access.
  • The phone's passcode can be a pattern or a numeric PIN.

Synonyms

• Access code: A code used to gain entry to a system.
• Security code: A code designed to protect security.

Related Phrases

• Enter your PIN: The standard instruction for using a PIN.
  • The screen prompted me to enter my PIN.
• PIN-protected: Describes a device or account secured by a PIN.
  • My smartphone is PIN-protected.

Noun

1. a number you choose and use to gain access to various accounts