proof of concept


plural proofs of concept
: something that demonstrates the feasibility of a concept (such as a product idea or a business plan)
Even if it succeeds, the $5.9 billion reactor will be just a proof of concept, with commercial fusion power still decades away.Corey S. Powell
Malware and virus-writing used to be something hobbyist hackers did for fun, as proofs of concept. Not anymore.Mat Honan
often hyphenated when used before another noun
No invention is worth anything without the proof-of-concept prototype.Shintaro Osano
proof-of-concept experiments funded with public money and years away from any commercial application, were sponsored by university biology departments.Andrew Curry

Examples of proof of concept in a Sentence

Recent Examples on the Web The company tackled the challenge of finding a suitable iridium replacement for PEM electrolysis as a proof of concept for its high-throughput materials discovery platform. IEEE Spectrum, 30 Oct. 2023 Either way, as Riley sees it, UCLA’s overnight transformation on defense is proof of concept that USC can pull off something similar. Ryan Kartje, Los Angeles Times, 17 Nov. 2023 The September storm provided early proof of concept for Rebuild’s work in Hoboken and for the effectiveness of its green infrastructure, although changing minds remains a hurdle in the current media landscape. Michael Kimmelman, New York Times, 3 Nov. 2023 The evidence illustrates that this model works–with the success of countries such as Egypt, Uzbekistan, Brazil, India, and several others providing proof of concept. Makhtar Diop, Fortune, 25 Oct. 2023 There are still complexities to iron out before this moves from proof of concept to standard lab practice. WIRED, 3 Oct. 2023 As a proof of concept, the team fed some of Gero's recordings to a neural network, an algorithm that learns skills by analyzing data. Lois Parshley, Scientific American, 19 Sep. 2023 In one proof of concept from earlier this year, security researcher Johann Rehberger was able to get ChatGPT to respond to a prompt embedded in a YouTube transcript. Harry Guinness, Popular Science, 31 Aug. 2023 The feasibility study and proof of concept would be worth $1 million for the team with the winning submission. Tim Newcomb, Popular Mechanics, 14 Aug. 2023 See More

These examples are programmatically compiled from various online sources to illustrate current usage of the word 'proof of concept.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.

Word History

First Known Use

1967, in the meaning defined above

Time Traveler
The first known use of proof of concept was in 1967

Dictionary Entries Near proof of concept

Cite this Entry

“Proof of concept.” Dictionary, Merriam-Webster, Accessed 10 Dec. 2023.

Last Updated: - Updated example sentences
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