1
: specification
—usually used in plural
also
: a single quantity (such as a dimension or a measure of performance) describing a product especially as part of a specification
2
: speculation
built the house on spec
Examples of spec in a Sentence
Noun
parts built according to spec
Recent Examples on the Web
Kapil Kajal, Interesting Engineering, 23 Sep. 2025
In fact, Montblanc hasn't revealed some of the key tech specs for the Digital Paper.
—James Peckham, PC Magazine, 22 Sep. 2025
PC Magazine, 11 Sep. 2025
WebAuthn, the predecessor spec to FIDO, hints at the same common-sense limitation.
—Dan Goodin, ArsTechnica, 28 Aug. 2025
See All Example Sentences for spec
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Noun
The hard step is to build demonstration plants that aggregate feedstock, demonstrate continuous uptime, and sign off on product specs.
—Kapil Kajal, Interesting Engineering, 23 Sep. 2025
In fact, Montblanc hasn't revealed some of the key tech specs for the Digital Paper.
—James Peckham, PC Magazine, 22 Sep. 2025
Verb
In the meantime, head over to our feature and spec comparison of all three new models.
—PC Magazine, 11 Sep. 2025
WebAuthn, the predecessor spec to FIDO, hints at the same common-sense limitation.
—Dan Goodin, ArsTechnica, 28 Aug. 2025
See All Example Sentences for spec
Cite this Entry
“Spec.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/spec. Accessed 29 Sep. 2025.
Copy CitationLegal Definition
spec
transitive verbˈspek
specced or spec'd
ˈspekt 
; speccing
; speccing
ˈspe-kiŋ
: to write specifications for
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