alnum

ˈæl.nəm

Definition

Definition of alnum - Reverso English Dictionary

Noun

typography

TECH.

character that is either a letter or a digit

TECH.

The password must contain at least one alnum.

technology

TECH.

abbreviation for alphanumeric characters

TECH.

The password must include alnum for security.

alpha

alphanumeric

Abbreviation

abr: alphanumeric

TECH.

using both letters and numbers together

TECH.

Your password must be alnum for security.

alphanumeric

Add a suggestion |

Feedback:

Origin of alnum

Latin, alnum (alder tree)

Examples of alnum in a sentence

Each alnum in the code must be unique.
The code must contain at least one alnum.
Alnum is essential for creating secure usernames.
Please enter an alnum code.
The username must be alnum only.

View all translations of alnum

✨Click below to see the appropriate translations facing each meaning.

French:caractère alphanumérique, caractères alphanumériques, ...
German:alphanumerisches Zeichen, alphanum, ...
Italian:carattere alfanumerico, alfa-num, ...
Spanish:carácter alfanumérico, alfanum, ...
Portuguese:carácter alfanumérico, alfanumérica, ...
Chinese:字母数字字符, 字母数字, ...
Japanese:英数字, アルファベット数字, ...
Arabic:حَرْف أَو رَقْم, أَبْجَدِي رَقْمِي, ...
Hebrew:תו אלפאנומרי, אלפאנומרי, ...
Russian:алфавитно-цифровой символ, алфанумерный, ...
Ukrainian:алфанумеричний символ, алнум, ...
Hindi:अल्फ़ान्यूमेरिक, अक्षर-संख्या, ...
Bengali:অ্যালনাম, আলনাম, ...
Catalan:caràcter alfanumèric, alfanumèrica, ...
Czech:alfanumerický znak, alfanumerický, ...
Danish:alfanumerisk tegn, alnum, ...
Dutch:alfanumeriek teken, alfanumeriek, ...
Greek:αλφαριθμητικό, αλφαριθμητικός, ...
Hungarian:alfanumerikus karakter, alfanumerikus, ...
Khmer:តួអក្សរដែលជាអក្សរ ឬលេខ, ប្រើទាំងអក្សរ និងលេខ, ...
Korean:영숫자, 문자와 숫자가 혼합된, ...
Persian:حرف‌عدد, شامل حروف و اعداد, ...
Polish:znak alfanumeryczny, alnum, ...
Portuguese (BR):caractere alfanumérico, alfanum, ...
Romanian:alfanumeric, caractere alfanumerice, ...
Swedish:alfanumerisk, alfanumeriskt, ...
Thai:ตัวอักษรหรือตัวเลข, ที่มีทั้งตัวอักษรและตัวเลข, ...
Turkish:alnum, harf ve sayı kombinasyonu, ...
Vietnamese:ký tự chữ số, chữ-số, ...

Browse the dictionary entries starting with “a”:

Discover how Reverso redefines the dictionary

Go beyond “simple words”

100,000 expressions & idioms Understand any expression you come across: from corporate jargon like 💬 touch base or ↩️ circle back to everyday expressions such as 🌊 out of the blue or 🦆 lame duck, as well as idioms like 🍲 spill the beans and 🐎 hold your horses.

40,000 images When you search for a concrete noun or object, images help you grasp the meaning at a glance. Try searching for 🧵 puppytooth, 🎠 merry-go-round, ⚜️ fleur-de-lys, or 💤 bunk bed.

Informal language & slang Everyday conversations are packed with informal expressions and slang. Meanings are clearly tagged, so you'll always know when a word is casual. Look up hangry (😋 hungry + 😡 angry), 😎 rizz, 🕹️ noob, or 🔑 low-key.

Abbreviations & acronyms Quickly decode modern abbreviations and acronyms. Go from IDK to OMG in seconds and stay up to date with popular abbreviations such as 🐐 GOAT, 📜 tl;dr, 👀 POV, or 🖥️ AFK.

Regional usage (US / UK) Reverso highlights regional differences between American and British English. You’ll never have to wonder where a word is commonly used: try lift vs. elevator, courgette vs. zucchini, or popular British slang like dodgy or banter. What’s more, when you search for 'color', you’ll immediately see its British counterpart, 'colour'.

Get more than a simple definition

Translations for each meaning View translations alongside each meaning to see how a word is translated in each context. Simply toggle translations ON and choose among 25+ languages. You can also display the translation of definitions or examples into your native language to deepen your understanding.

Synonyms & related words by meaning View synonyms and related words for each meaning, not just for the word as a whole. This helps you choose the most accurate word for your context. Click the

icon to discover related terms: analogies, antonyms, common collocates, words with same roots, umbrella terms… Try with happening or hunch.

Multiple examples for every meaning Each meaning comes with three real-life examples to show you how the word is used in different contexts. Click the

icon next to the first example to see two additional options and learn to use new vocabulary naturally.

Go from understanding to mastery

Save words for later review Click the

icon to save words you want to revisit. You can also save a specific meaning by clicking on the

icon next to it. For example, you might want to save the word “table” as a verb, which means “to postpone”.

Practice with personalized flashcards Reverso automatically transforms your searches and saved words into personalized flashcards and quizzes, featuring high-quality audio and usage examples. This helps you transform terms you only recognize into words you actually use confidently.

Learn with Netflix, YouTube, and your favorite texts With Reverso Chrome extension, transform movies, TV shows, articles, or song lyrics into an interactive lesson. Look up words and expressions in one click on any website and learn with your favorite content.

Definition of alnum - Reverso English Dictionary

Noun

Abbreviation

Origin of alnum

Terms related to alnum

Examples of alnum in a sentence

View all translations of alnum

Discover how Reverso redefines the dictionary

Go beyond “simple words”

Get more than a simple definition

Go from understanding to mastery