identifier

Code element name

An identifier is a name or label that uniquely picks out a particular thing from others of its kind.

In computing, identifiers name variables, functions, or other elements in code.

More broadly, any distinguishing marker counts: Social Security numbers serve as unique identifiers.

The word often appears in bureaucratic or technical contexts where precise distinction matters.

label

name

Identifying word for someone

marker · label · nameplate · sign · indicator · descriptor · heading · caption · inscription · moniker

digital

username

Account identification string

  • handlePart for gripping
  • tagIdentifier or classifier
  • codeSymbolic communication system

number · serial · barcode · QR code · UUID · IP address · URL · SKU · tracking number · account number

authentication

verification

Proving something accurate

login · password · PIN · biometric · fingerprint · two-factor · multi-factor · token · key · access

biological

DNA

Hereditary code molecule

facial recognition · voiceprint · genetic marker · biometric · blood type · genome · chromosome · biomarker · physiological · thumbprint

document

passport

Government-issued travel credential

  • licenseFormal grant of permission
  • ID cardDocument verifying identity
  • badgeWorn symbol of membership

credential · certificate · permit · visa · driver's license · birth certificate · social security · national ID · green card · papers

unique

distinctive

Readily identifiable, set apart

particular · characteristic · defining · specific · exclusive · personal · proprietary · custom · one-of-a-kind · unmistakable

Categories
Opposites
specificity/designation

identifierwildcard

Unpredictable factor in play

descriptor · classifier · category · type · class

function in data/naming systems

identifiervalue

Importance or price

content · payload · referent · signified · data

anonymity/recognizability

identifieranonymizer

Service obscuring user identity

obscurer · mask · concealer · redaction · obfuscator

Phrases
Family

identified, identification, unidentified, de-identification, re-identification, identifiable, identifies, unidentifiable, identifiers

Familiarity
Top 500,000
Profile
Used worldwide · Timeless · Abstract · Rated G