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.
In a Facebook post on Sept. 22, Schenke tried to explain his rationale. Noe Padilla, The Indianapolis Star, 6 Nov. 2024 The council members are available to offer feedback on day-to-day activities of the agency and to help explain to the public some of the rationale behind more complex efforts Game and Fish is undertaking. Arkansas Game and Fish, arkansasonline.com, 5 Nov. 2024 Three days later, the high court outlined its rationale with its 61-page ruling in Bush v. Gore. Cynthia Littleton, Variety, 5 Nov. 2024 The loser would need to identify a viable rationale for a court to vacate the arbitration decision. Michael McCann, Sportico.com, 4 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 Nov. 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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