character code: meaning, definition, pronunciation and examples

C1
UK/ˈkærəktə kəʊd/US/ˈkɛrəktər koʊd/

Technical / Academic

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Quick answer

What does “character code” mean?

A numerical representation or sequence of bits used to represent a specific character (letter, digit, punctuation mark, or symbol) within a computing or telecommunications system.

Audio

Pronunciation

Definition

Meaning and Definition

A numerical representation or sequence of bits used to represent a specific character (letter, digit, punctuation mark, or symbol) within a computing or telecommunications system.

A standardized mapping between characters and numeric values (e.g., ASCII, Unicode) that enables the storage, processing, and transmission of text in digital systems. The concept extends to any system where a symbol is assigned a unique identifier for unambiguous interpretation.

Dialectal Variation

British vs American Usage

Differences

No significant difference in meaning or usage. The term is international and technical.

Connotations

Neutral technical term in both variants.

Frequency

Equally frequent in technical contexts in both regions.

Grammar

How to Use “character code” in a Sentence

The system uses [determiner] character code for [purpose].Convert [character] to/into its character code.The character code for [character] is [number].

Vocabulary

Collocations

strong
ASCII character codeUnicode character codebinary character codenumeric character codestandard character code
medium
look up a character codeassign a character codeconvert a character codeextended character codeinternal character code
weak
correct character codeinvalid character codespecific character codecorresponding character code

Examples

Examples of “character code” in a Sentence

verb

British English

  • The software will character-code each symbol before transmission.
  • Older systems character-coded text in a proprietary format.

American English

  • The protocol requires you to character-code the data. (Less common; 'encode' is preferred)

adjective

British English

  • The character-code table must be loaded into memory.
  • We identified a character-code mismatch between the systems.

American English

  • Check the character-code conversion settings.
  • The document has a character-code error.

Usage

Meaning in Context

Business

Rare, except in IT-specific business contexts (e.g., 'Ensure the database supports international character codes.')

Academic

Common in computer science, information technology, and digital humanities papers.

Everyday

Very rare. A non-technical person might simply say 'computer number for a letter'.

Technical

The primary domain of use. Essential vocabulary for programming, web development, data transmission, and font design.

Vocabulary

Synonyms of “character code”

Strong

code point (more precise in Unicode context)

Neutral

code pointcharacter identifiercharacter value

Weak

symbol numberchar code (informal abbreviation)

Vocabulary

Antonyms of “character code”

plain textglyphrendered character

Watch out

Common Mistakes When Using “character code”

  • Using 'character code' to mean 'password' or 'access code'.
  • Confusing it with 'character encoding' (e.g., UTF-8). The code is the number, the encoding is the rule for writing that number as bytes.
  • Saying 'The file's character code is UTF-8' – incorrect. 'The file uses UTF-8 encoding to represent Unicode character codes.' is correct.

FAQ

Frequently Asked Questions

ASCII is a character code standard (defining numbers 0-127 for characters). When stored, its *encoding* is typically straightforward 7 or 8 bits per code, so the terms are often conflated for ASCII.

A character code (or code point) is the abstract number representing a character (e.g., 65 for 'A'). A character encoding (e.g., UTF-8, Windows-1252) is the concrete rule for translating that number into a sequence of bytes for storage or transmission.

Unicode is a standard that defines a very large set of character codes (code points) for almost all writing systems. It is not itself an encoding; UTF-8, UTF-16, and UTF-32 are Unicode encoding forms.

This often happens when a program uses the wrong assumption about the character encoding to interpret the byte data, leading to incorrect mapping back to character codes and thus wrong symbols being displayed.

A numerical representation or sequence of bits used to represent a specific character (letter, digit, punctuation mark, or symbol) within a computing or telecommunications system.

Character code is usually technical / academic in register.

Character code: in British English it is pronounced /ˈkærəktə kəʊd/, and in American English it is pronounced /ˈkɛrəktər koʊd/. Tap the audio buttons above to hear it.

Learning

Memory Aids

Mnemonic

Think of a 'secret agent' (character) who has a 'codename' (code). Each letter/symbol has its own secret number identity.

Conceptual Metaphor

A DIGITAL ID CARD for a character. / A PHONE NUMBER for a letter, allowing the system to call it up correctly.

Practice

Quiz

Fill in the gap
The for the euro symbol (€) in Unicode is U+20AC.
Multiple Choice

What is the primary purpose of a character code?