identification number
Definition
Noun: A unique sequence of digits, and sometimes letters, assigned to an individual, item, or entity for the specific purpose of distinguishing it from others in a system or record. It serves as a formal, standardized identifier.
Usage
An identification number is used in administrative, financial, and technological systems to track and manage records efficiently. It is a key piece of data for verification. - It is typically a required field on official forms and applications. - It must be kept confidential when it pertains to personal identity to prevent fraud.
Examples
Advanced Usage
- As a Primary Key: In database management, an identification number often functions as the primary key for a record, ensuring no two entries are identical.
- In Digital Security: Cryptographic systems may use an identification number as part of a two-factor authentication process.
Variants and Related Words
- ID Number: A common abbreviated form with identical meaning.
- Serial Number: A type of identification number assigned to a specific unit of a product.
- Reference Number: An identification number used to track a specific transaction or case.
Synonyms
- Identifier
- Code
- Reference code
Related Phrases
- To quote an identification number: To provide or cite the number, often in communication with an institution.
- You must quote your policy identification number when making an inquiry.
- Identification number issued: Refers to the official act of assigning the number.
- An identification number is issued to each new student upon enrollment.
Noun
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a numeral or string of numerals that is used for identification
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she refused to give them her Social Security number
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