PIN number
Cash machine secret
PIN number is a redundant phrase—the N in PIN stands for "number," so PIN number literally means "personal identification number number." Despite this, the phrase is extremely common in everyday speech and writing: I forgot my PIN number.
Linguistic purists object, but the redundancy persists because PIN alone can sound incomplete, and most speakers neither know nor care about the acronym's expansion.
Automated banking kiosk
- withdrawalAct of taking away
- depositPlace for safekeeping
- transactionExchange of goods/money
- debitSubtraction from account
checking · savings · account · balance · transfer · teller · bankcard · statement
Converting data into code
- authenticationConfirming genuine identity
- verificationProving something accurate
- two-factorAuthentication using paired credentials
- hashingOne-way data transformation
tokenization · brute force · shoulder surfing · skimming · phishing · compromised · reset · blocked
Access or submission
- unlockOpen a secured closure
- keypadButton array for input
- gateHinged barrier in fence
- doorHinged room barrier
safe · turnstile · checkpoint · barrier · lock · code entry · combination · restricted area
Expressed in digits
- sequentialOccurring in succession
- birthdayAnnual date of origin
- anniversaryRecurring memorial date
- patternRecurring arrangement or template
forgotten · reset · hint · recall · mnemonic · muscle memory · predictable · random
ATM
Automated banking kiosk
- withdrawalAct of taking away
- depositPlace for safekeeping
- transactionExchange of goods/money
debit · checking · savings · account · balance · transfer · teller · bankcard · statement · overdraft
encryption
Converting data into code
- authenticationConfirming genuine identity
- verificationProving something accurate
- two-factorAuthentication using paired credentials
hashing · tokenization · brute force · shoulder surfing · skimming · phishing · compromised · reset · blocked · attempts
entry
Access or submission
door · safe · turnstile · checkpoint · barrier · lock · code entry · combination · restricted area · swipe
numeric
Expressed in digits
- sequentialOccurring in succession
- birthdayAnnual date of origin
- anniversaryRecurring memorial date
pattern · forgotten · reset · hint · recall · mnemonic · muscle memory · predictable · random · unique
- debit cardscontactless, expiration date, CVV, prepaid debit, card activation
- Redundanciestautology, pleonasm, redundancy, redundant phrase, added bonus
- redundant phrasesATM machine, LCD display, HIV virus, UPC code, DC current
- ATMsATM, ATMs, ATM machine, cash machine, cash machines
- identifiersidentifier, title, rank, license, permit
- German BankingDeutsche Bank, savings banks, savings bank, private banks, commercial banks
PIN numberbiometric scan
Identification via physical traits
fingerprint · facial recognition · retinal scan · password · voice recognition
PIN numberencryption key
Data-scrambling secret string
multi-factor authentication · biometric verification · public key