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.
Kliewer returns to court on April 28 for a probable cause conference. Joseph Buczek, CBS News, 17 Apr. 2026 Police took him into custody in the Hollywood Hills on a probable cause warrant on Thursday, April 16, a police source told PEOPLE. Nicole Acosta, PEOPLE, 17 Apr. 2026 Investigators were able to identify Conaway through the rideshare’s booking information and videos posted to social media, which showedthe gun used in the shooting, according to the probable cause statement. Caroline Zimmerman, Kansas City Star, 16 Apr. 2026 None of them need probable cause. Robert Salonga, Mercury News, 15 Apr. 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

Browse Nearby Words

Cite this Entry

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

Legal Definition

probable cause

see also:
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!

More from Merriam-Webster