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.
The team theorized that Alzheimer's disease might be characterized as a result of the brain not getting enough nourishment from the blood vessels. Michael Franco, New Atlas, 3 Feb. 2025 Fortunately, astronomers shouldn’t be stuck merely theorizing forever. Gayoung Lee, Scientific American, 2 Feb. 2025 At the time, fans theorized the announcement was related to a tour or another album release. Natalie Oganesyan, Deadline, 2 Feb. 2025 The changes in Mars' temperature were reflected by chemical changes, too, the team theorizes. Robert Lea, Space.com, 30 Jan. 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

Dictionary Entries Near theorize

Cite this Entry

“Theorize.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/theorize. Accessed 11 Feb. 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
Last Updated: - Updated example sentences
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