rationale

noun

ra·​tio·​nale ˌra-shə-ˈnal How to pronounce rationale (audio)
1
: an explanation of controlling principles of opinion, belief, practice, or phenomena
2
: an underlying reason : basis

Did you know?

Rationale comes from Latin ratio, meaning "reason," and rationalis, "endowed with reason." Ratio is reasonably familiar as an English word for the relationship (in number, quantity, or degree) between things.

Examples of rationale in a Sentence

the rationale for starting the school day an hour later is that kids will supposedly get an extra hour of sleep
Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
The rationale behind the introduction of the feature seems to be the idea that news and opinion are not separated enough, nowadays, and that readers are losing trust in the media. Federico Guerrini, Forbes, 8 Dec. 2024 Designing for emotions On Thursday, Amit described the rationale behind some of NewDealDesign’s recent projects, including its work with Serve Robotics, a company that provided delivery through small autonomous delivery vehicles. Lionel Lim, Fortune Asia, 5 Dec. 2024 But the rationale for dismissing the case entirely, rather than simply delaying sentencing till after Trump's term ends, is much less clear. Thomas G. Moukawsher, Newsweek, 29 Nov. 2024 Our rationale is that Sawiris, who went to college in the U.S. and has a base there, teamed up to buy Villa with NBA club Milwaukee Bucks’ co-owner Wes Edens, and their V Sports group feels more American than Egyptian. Matt Slater, The Athletic, 21 Nov. 2024 See all Example Sentences for rationale 

Word History

Etymology

Latin, neuter of rationalis

First Known Use

1657, in the meaning defined at sense 1

Time Traveler
The first known use of rationale was in 1657

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Dictionary Entries Near rationale

Cite this Entry

“Rationale.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/rationale. Accessed 22 Dec. 2024.

Kids Definition

rationale

noun
ra·​tio·​nale ˌrash-ə-ˈnal How to pronounce rationale (audio)
: a basic reason or explanation for something

More from Merriam-Webster on rationale

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