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noun

specification

/ˌspɛsɪˈfɪkeɪʃən/  ·  say it: SPEH·suh·fuh·KAY·shun

a detailed, exact statement

In Nuance & Precision

In more detail

1. (noun) a detailed description of what something should be like, including size, materials, quality, or how it should work

2. (noun) a requirement or standard that something must meet

Examples

How to use specification

Specification is used in technical, commercial, and formal contexts to refer to precise requirements or detailed descriptions that something must conform to. It is often used in the plural (specifications) when listing multiple requirements. The word is more formal and technical than the simpler synonym 'requirement,' and emphasizes precision and measurable standards.

Register: formal

Common phrases

Synonyms

requirement · standard · criterion · description · detail

Word family

specify (verb) · specific (adjective) · specifically (adverb) · specificity (noun)

A common mistake

Learners sometimes confuse 'specification' with 'specification of' when they mean to specify something; use the verb 'specify' instead (e.g., 'specify the requirements' rather than 'specification the requirements').

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