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
Stephen Underwood, Hartford Courant, 19 Feb. 2026
Between its stellar driving range and quick acceleration, few competitors in its segment can rival its performance specs.
—Charles Singh, USA Today, 19 Feb. 2026
Ewan Spence, Forbes.com, 24 Jan. 2026
Those who'd prefer a more comprehensive design can further spec out the kitchen via other packages, turning it into a capable camper cook station ready to compete with the galley of any small camping rig.
—New Atlas, 10 Jan. 2026
See All Example Sentences for spec
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Noun
The insects feed on organic matter and use a tail-like bodies to jump, appearing as dark, pepper-like specs in the snow.
—Stephen Underwood, Hartford Courant, 19 Feb. 2026
Between its stellar driving range and quick acceleration, few competitors in its segment can rival its performance specs.
—Charles Singh, USA Today, 19 Feb. 2026
Verb
Google is expected to spec the Pixel 10a closer to last year’s Pixel 9a than the Pixel 10, including staying on a year-old processor.
—Ewan Spence, Forbes.com, 24 Jan. 2026
Those who'd prefer a more comprehensive design can further spec out the kitchen via other packages, turning it into a capable camper cook station ready to compete with the galley of any small camping rig.
—New Atlas, 10 Jan. 2026
See All Example Sentences for spec
Cite this Entry
“Spec.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/spec. Accessed 21 Feb. 2026.
Copy CitationLegal Definition
spec
transitive verbˈspek
specced or spec'd
ˈspekt 
; speccing
; speccing
ˈspe-kiŋ
: to write specifications for
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