form validation
compound.compound. the process of checking if the information someone enters into a digital form is correct and complete. It ensures that things like email addresses or phone numbers are in the right format before they are sent.
compound. the technical process of verifying that user input in a web or software form meets specific criteria before processing. This involves checking for required fields, data types, and logical consistency to prevent errors or security vulnerabilities.
The website uses form validation to check your email address.
Without proper form validation, users might accidentally submit empty fields or enter text where a number is required.
Robust client-side form validation improves the user experience by providing immediate feedback, though server-side checks remain essential for maintaining data integrity and preventing malicious injections.
A compound of the noun form, derived from the Old French forme, and the noun validation, which traces back to the Latin validus, meaning strong or effective.
Etymology adapted from Wiktionary, available under CC BY-SA 4.0.
Often used as a compound noun in technical and web development contexts.
Last updated July 22, 2026