speculation

noun

spec·​u·​la·​tion ˌspe-kyə-ˈlā-shən How to pronounce speculation (audio)
Synonyms of speculation
: an act or instance of speculating: such as
a
: assumption of unusual business risk in hopes of obtaining commensurate gain
b
: a transaction involving such speculation

Examples of speculation in a Sentence

He dismissed their theories as mere speculation. The book is just a lot of idle speculation about the future. Her speculations leave many questions unanswered. He lost everything in foolish land speculation.
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 pound eased against major currencies as speculation mounted that Starmer was going to set out a timetable for his departure. Kim Hjelmgaard, USA Today, 22 June 2026 When speculation about his return to London intensified, Burnham appeared to change his position, for instance, on immigration and Britain's post-Brexit relationship with Europe. Inaya Folarin Iman, CBS News, 22 June 2026 Against all the latest speculation is Tuesday night’s first round of the NBA draft, the soft deadline set by Bucks co-owner Jimmy Haslam if there is to be an Antetokounmpo trade. Ira Winderman, Sun Sentinel, 22 June 2026 Doing business had until recently been speculation, a serious crime. Literary Hub, 22 June 2026 See All Example Sentences for speculation

Word History

First Known Use

14th century, in the meaning defined above

Time Traveler
The first known use of speculation was in the 14th century

Browse Nearby Words

Cite this Entry

“Speculation.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/speculation. Accessed 25 Jun. 2026.

Kids Definition

speculation

noun
spec·​u·​la·​tion ˌspek-yə-ˈlā-shən How to pronounce speculation (audio)
1
: thoughts or guesses about something
much speculation about who the new teacher would be
2
: the taking of a big risk in business in hopes of making a big profit

Legal Definition

speculation

noun
spec·​u·​la·​tion ˌspe-kyə-ˈlā-shən How to pronounce speculation (audio)
: an act or instance of speculating: as
a
: assumption of unusual business risk in hopes of obtaining commensurate gain
b
: a transaction involving such speculation

More from Merriam-Webster on speculation

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