probable cause

noun

: a reasonable ground for supposing that a charge is well-founded

Examples of probable cause in a Sentence

The lawyer argued that there was a lack of probable cause for a search warrant. The police had probable cause to arrest him.
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.
Officers found 10 shell casings at the scene and an empty gun magazine, according to the probable cause statement. Caroline Zimmerman, Kansas City Star, 5 Feb. 2026 In September, the office drafted a probable cause affidavit that listed ethics violations against Green. Alexandra Kukulka, Chicago Tribune, 5 Feb. 2026 They can be prohibited from using pepper spray or relying in any way on ethnic indicators, such as appearance, language, and accent, as a basis for their probable cause to arrest. Paul Rosenzweig, The Atlantic, 4 Feb. 2026 But actually arresting somebody and putting them in custody requires a much higher level of proof, which is probable cause. Isaac Chotiner, New Yorker, 3 Feb. 2026 See All Example Sentences for probable cause

Word History

First Known Use

circa 1676, in the meaning defined above

Time Traveler
The first known use of probable cause was circa 1676

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Cite this Entry

“Probable cause.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/probable%20cause. Accessed 6 Feb. 2026.

Legal Definition

probable cause

see cause sense 2

Last Updated: - Updated example sentences
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