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adjective al·pha·nu·mer·ic \-nu̇-ˈmer-ik, -nyu̇-\

Simple Definition of alphanumeric

  • : having or using letters and numbers

Source: Merriam-Webster's Learner's Dictionary

Full Definition of alphanumeric

  1. 1 :  consisting of both letters and numbers and often other symbols (as punctuation marks and mathematical symbols) <an alphanumeric code>; also :  being a character in an alphanumeric system

  2. 2 :  capable of using or displaying alphanumeric characters


play \-i-k(ə-)lē\ adverb


play \-iks\ noun plural

Did You Know?

Alphanumeric passwords are much harder for a hacker to crack than plain alphabetic passwords, since the number of possible combinations is so much greater. License plates usually contain both letters and numbers, since, for a big state or country, the plate wouldn't be large enough to fit enough numbers for everyone. In computing, the standard alphanumeric codes, such as ASCII, may contain not only ordinary letters and numerals but also punctuation marks and math symbols.

Variants of alphanumeric



play \-i-kəl\

Origin and Etymology of alphanumeric

alphabetic + numeric, numerical

First Known Use: 1950

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