theorize

verb

the·​o·​rize ˈthē-ə-ˌrīz How to pronounce theorize (audio)
ˈthir-ˌīz
theorized; theorizing

transitive verb

1
: to form a theory about
2
: to propose as a theory
theorization noun
theorizer noun

Examples of theorize in a Sentence

Many scientists have theorized about the possibility of life on other planets.
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.
If fans have been theorizing about what this look could mean with regards to the Swift canon, nothing has yet reached this writer’s ears. Sam Reed, Glamour, 12 May 2025 Louisville Police theorized the driver somehow lost control, but an investigation into the incident is ongoing. Rachel Raposas, People.com, 6 May 2025 Che closed out the Update with a joke about Uber offering free rides to teens attending prom, theorizing that users could expect their driver Matt Gaetz to be arriving soon. Lauren Coates, Variety, 4 May 2025 His co-workers theorized the investigation had something to do with his homicide. Matthew Ormseth, Los Angeles Times, 3 May 2025 See All Example Sentences for theorize

Word History

First Known Use

1644, in the meaning defined at transitive sense 1

Time Traveler
The first known use of theorize was in 1644

Browse Nearby Words

Cite this Entry

“Theorize.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/theorize. Accessed 28 May. 2025.

Kids Definition

theorize

verb
the·​o·​rize ˈthē-ə-ˌrīz How to pronounce theorize (audio)
theorized; theorizing
: to form a theory : speculate
theorizer noun

More from Merriam-Webster on theorize

Last Updated: - Updated example sentences
Love words? Need even more definitions?

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