checksum: meaning, definition, pronunciation and examples
C1Technical / Formal
Quick answer
What does “checksum” mean?
A value calculated from a block of digital data to detect errors during transmission or storage.
Audio
Pronunciation
Definition
Meaning and Definition
A value calculated from a block of digital data to detect errors during transmission or storage.
A simple error-detection method where a numerical value is derived from data and later used to verify its integrity. In broader contexts, it can metaphorically refer to any quick verification of correctness or completeness.
Dialectal Variation
British vs American Usage
Differences
No significant lexical or semantic differences. Spelling is consistent.
Connotations
Identical technical connotations in both varieties.
Frequency
Equally common in technical contexts in both regions.
Grammar
How to Use “checksum” in a Sentence
The software calculates a checksum for the downloaded file.The data's integrity was verified using a checksum.Vocabulary
Collocations
Examples
Examples of “checksum” in a Sentence
verb
British English
- The programme checksums the archive before extraction.
- Have you checksummed the downloaded ISO file?
American English
- The software checksums the archive before extraction.
- Did you checksum the downloaded disk image?
adjective
British English
- The checksum verification failed.
- Use the checksum file for validation.
American English
- The checksum verification failed.
- Use the checksum file for validation.
Usage
Meaning in Context
Business
Rare, except in IT departments discussing data integrity.
Academic
Common in computer science, engineering, and information theory papers.
Everyday
Very rare; used mainly by technically inclined individuals.
Technical
The primary domain of use; central to data transmission, storage, and cybersecurity.
Vocabulary
Synonyms of “checksum”
Strong
Neutral
Weak
Vocabulary
Antonyms of “checksum”
Watch out
Common Mistakes When Using “checksum”
- Using 'checksum' as a verb (e.g., 'I will checksum the file') is technical jargon; standard English prefers 'calculate a checksum for'.
- Confusing 'checksum' with 'check digit' (the latter is often a single digit).
FAQ
Frequently Asked Questions
No. A checksum is for detecting accidental errors or changes; it does not conceal data. Encryption is for hiding data content from unauthorized parties.
Yes, in theory, though it is extremely unlikely with good algorithms. This is called a 'collision'. Modern cryptographic hashes are designed to make collisions practically impossible to find.
All checksums are hashes, but not all hashes are checksums. 'Checksum' often implies simpler, faster algorithms for error detection (e.g., CRC). 'Hash' is a broader term that includes complex cryptographic functions (e.g., SHA-256) used for security.
You use a tool or command to calculate the checksum of your local file. You then compare this calculated value to the checksum provided by the original source. If they match exactly, the file is intact.
A value calculated from a block of digital data to detect errors during transmission or storage.
Checksum is usually technical / formal in register.
Checksum: in British English it is pronounced /ˈtʃek.sʌm/, and in American English it is pronounced /ˈtʃek.sʌm/. Tap the audio buttons above to hear it.
Phrases
Idioms & Phrases
- “Run a checksum on it (technical idiom).”
Learning
Memory Aids
Mnemonic
Think of a CHECKout SUM: you sum up the items (data) to check if the total (checksum) is correct.
Conceptual Metaphor
A DATA FINGERPRINT (a unique, compact identifier used for verification).
Practice
Quiz
What is the primary purpose of a checksum?