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
Megan McIntyre, Allure, 16 Sep. 2025
For those obsessed with specs charts, yes, Maybach SL 680 is a slower out of the blocks than the highly athletic AMG SL 63.
—Mark Ewing, Forbes.com, 14 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
Kylie Jenner shared the details of her augmentation on social media this summer—445 ccs, moderate profile, half under the muscle—and other celebrities followed by posting about their own specs.
—Megan McIntyre, Allure, 16 Sep. 2025
For those obsessed with specs charts, yes, Maybach SL 680 is a slower out of the blocks than the highly athletic AMG SL 63.
—Mark Ewing, Forbes.com, 14 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 18 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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