pre·ci·sion
pri-ˈsi-zhən 
2
a
: the degree of refinement with which an operation is performed or a measurement stated compare accuracy sense 2b
b
: the accuracy (as in binary or decimal places) with which a number can be represented usually expressed in terms of the number of computer words available for representation
double precision arithmetic permits the representation of an expression by two computer words
1
: adapted for extremely accurate measurement or operation
2
: held to low tolerance in manufacture
3
: marked by precision of execution
Did you know?
Many of us often use precision and accuracy as synonyms, but not scientists and engineers. For them, accuracy describes a particular measurement—that is, how close it is to the truth. But precision describes a measurement system—that is, how good it is at giving the same result every time it measures the same thing. This may be why even nonscientists now often speak of "precision instruments" for measuring, "precision landings" made by airplanes, "precision drilling" for natural gas, and so on.
Examples of precision in a Sentence
Noun
I admire the precision of her work.
the company that measures TV ratings prides itself on the precision of its calculations
Adjective
The airplane made a precision approach for landing.
Recent Examples on the Web
Carl Anka, New York Times, 26 Oct. 2025
The deal is expected to close in the first half of 2026, after Avidity spins out parts of its business, including its early-stage precision cardiology programs, the company said in a statement.
—Liz Napolitano, CNBC, 26 Oct. 2025
Bjoern Petersen, Forbes, 14 Mar. 2022
And the composite in the aluminum-composite rear axle links was flexible enough to give the rear axle a disturbing springy, non-precision feel in some dynamic situations.
—Gary Witzenburg, Car and Driver, 7 July 2021
See All Example Sentences for precision
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Noun
Ruben Amorim’s men attacked with precision and purpose at Old Trafford.
—Carl Anka, New York Times, 26 Oct. 2025
The deal is expected to close in the first half of 2026, after Avidity spins out parts of its business, including its early-stage precision cardiology programs, the company said in a statement.
—Liz Napolitano, CNBC, 26 Oct. 2025
Adjective
Tracking foot traffic and transaction volume data — a pillar of any precision retail program — helps stores avoid over- and understaffing, ensuring associates are always on hand to help customers in need.
—Bjoern Petersen, Forbes, 14 Mar. 2022
And the composite in the aluminum-composite rear axle links was flexible enough to give the rear axle a disturbing springy, non-precision feel in some dynamic situations.
—Gary Witzenburg, Car and Driver, 7 July 2021
See All Example Sentences for precision
Cite this Entry
“Precision.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/precision. Accessed 31 Oct. 2025.
Copy CitationKids Definition
precision
1 of 2 noun
pre·ci·sion
pri-ˈsizh-ən
precision
2 of 2 adjective1
: designed for very accurate measurement or operation
a precision gauge
2
: marked by precision
precision drilling
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