Requirement vs Specification

When to use each in English, with meaning, register, and examples.

 RequirementSpecification
MeaningSomething you need or must have.A detailed description of something's features or requirements.
CEFR levelB2C1
Part of speechnounnoun
Usage notesUse 'requirement' in professional and educational contexts. Avoid using it in casual conversation unless necessary.Use 'specification' in formal contexts like contracts or technical documents. Avoid in casual conversations. It's more appropriate for discussions focused on details.

Frequently asked questions: Requirement vs Specification

What's the difference between "Requirement" and "Specification"?

"Requirement" means: Something you need or must have. "Specification" means: A detailed description of something's features or requirements.

When should I use "Requirement" and "Specification"?

They can all be used in everyday English.

Are "Requirement" and "Specification" the same CEFR level?

"Requirement" is at B2, "Specification" is at C1 on the CEFR scale.

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