Criterion vs Specification

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

Criterion

FormalTop 5,000 (fairly common)B2noun

Specification

Top 3,000 (common)C1noun
Most formal: CriterionMost common: Specification
 CriterionSpecification
Pronunciation🇬🇧 /["/kraɪˈtɪəriən/","/kraɪˈtɪəriə/"]/🇺🇸 /["/kraɪˈtɪriən/","/kraɪˈtɪriə/"]/🇬🇧 /["/ˌspesɪfɪˈkeɪʃn/"]/🇺🇸 /["/ˌspesɪfɪˈkeɪʃn/"]/
MeaningA standard or rule used to judge something.A detailed description of something's features or requirements.
ExampleThe main criterion for selecting candidates is their experience in the field.the technical specifications of the new model *(= of car)*
RegisterFormalNeutral
How commonTop 5,000 (fairly common)Top 3,000 (common)
CEFR levelB2C1
Part of speechnounnoun
Collocationssole, basic, main, range, set, fit, fulfil/​fulfill, meet, according to a/​the criterion, by a/​the criterion, criterion forcomplete, detailed, full, develop, draw up, write, according to the/​your specifications, to the/​your specifications
Antonymsexception, deviationvagueness, ambiguity, generalization
Common mistakesConfused with 'criteria', which is the plural form., Used as a countable noun, e.g., saying 'a criterions' instead of 'a criterion'., Omitting the correct context, making sentences unclear.Confused with 'specifically' — they have different uses., Using it in informal contexts where simpler words work better., Mistaking it for 'speculation' which means guessing.
Usage notesUsed primarily in academic or professional contexts to establish standards. Avoid in casual conversation unless discussing evaluations.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: Criterion vs Specification

What's the difference between Criterion and Specification?

Criterion: A standard or rule used to judge something. Specification: A detailed description of something's features or requirements.

Which is more formal: Criterion and Specification?

Criterion is the most formal of these.

Which is more common: Criterion and Specification?

Specification is the most common in everyday English.

Which is more advanced: Criterion and Specification?

Specification is the highest level, at C1, on the CEFR scale.

Are Criterion and Specification the same CEFR level?

Criterion: B2, Specification: C1 on the CEFR scale.

What part of speech are Criterion and Specification?

Criterion: noun, Specification: noun.

Can you show an example of each?

Criterion: The main criterion for selecting candidates is their experience in the field. Specification: the technical specifications of the new model *(= of car)*

Can I use Criterion and Specification interchangeably?

Not always. Criterion and Specification are related and overlap in some contexts, but they differ in register, how common they are, and usage, so swapping one for another can change the meaning or tone. Check the differences above before substituting.

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