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.
Wallace’s attorney didn’t immediately respond Sunday to a request for comment; her probable cause affidavit, which details the case, was sealed from the public, court records show. — Sofia Saric, Miami Herald, 4 Oct. 2026 The affidavit noted that the Orange County Sheriff’s Office had probable cause to charge Wood with transmission of harmful material to minors and unlawful use of a two-way communication device, FOX 4 reported. — Bonny Chu, FOXNews.com, 2 Oct. 2026 Moore drove himself and his girlfriend to a nearby fire station and called the police, the probable cause affidavit said. — Jessie Dimartino, ABC News, 2 Oct. 2026 But the police generally need a warrant supported by probable cause once their conduct is classified as a search. — Henry F. Fradella, The Conversation, 1 Oct. 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 9 Oct. 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!