the·​o·​rize | \ˈthē-ə-ˌrīz, ˈthir-ˌīz\
theorized; theorizing

Definition of theorize 

transitive verb

1 : to form a theory about

2 : to propose as a theory

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Other Words from theorize

theorization \ ˌthē-​ə-​rə-​ˈzā-​shən , ˌthir-​ə-​ \ 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

Art historians theorize that the Van Campens, thinking their family was complete, commissioned the painting at some celebratory moment, but later were compelled to add their new child. Judith H. Dobrzynski, WSJ, "‘Frans Hals Portraits: A Family Reunion’ Review: Piecing Together the Van Campen Clan," 20 Oct. 2018 While not proving a causal link, the authors theorize that more diverse teams attract better talent, deepen consumer insights, strengthen employee satisfaction and make better decisions. Alexia Elejalde-ruiz,, "More women are landing seats on Illinois' corporate boards, but pace of change is 'glacial'," 24 May 2018 Moreover, the particular sterile neutrino that could hypothetically fit MiniBooNE’s data doesn’t solve any of the mysteries that led physicists to theorize about such particles in the first place. Natalie Wolchover, Washington Post, "Evidence for a new fundamental particle thrills and baffles physicists," 18 June 2018 Non-professional Cardona, a performer with natural dignity and an ability to project concern, does fine work as Jose, and filmmaker McKay expertly conveys the sense of a polyglot neighborhood where multi-culturalism is lived, not theorized about. Kenneth Turan,, "'En el Séptimo Día' (On the Seventh Day) shines a light on the everyday lives of Mexican immigrants," 14 June 2018 Rhodes is not yet sure why these reversions occur, but theorizes that the commitment to becoming female may be irreversible—and thus a risk only worth taking when all conditions are exactly right. Katherine J. Wu, Smithsonian, "Alternatives to Heterosexual Pairings, Brought to You By Non-Human Animals," 28 June 2018 Scientists who spoke with Michigan Live on Wednesday, also theorized that meteor was large. Sarah Gray, Fortune, "Watch a Meteor Explode Over Michigan, Causing Loud Boom and Brilliant Flash of Light," 17 Jan. 2018 Some attribute the rise in the body’s core temperature, while others theorize there are thermosensors lining the mouth and throat that may trigger additional sweating. Anna Thomas Bates, Milwaukee Journal Sentinel, "On a hot day, this quinoa salad can cool you down - without overheating your kitchen," 11 July 2018 Tagert theorized players at the top of the pay structure would be most affected. Michael Osipoff, Post-Tribune, "'Save America's Pastime Act' would force RailCats to evaluate salary structure," 10 Apr. 2018

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'theorize.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of theorize

1638, in the meaning defined at intransitive sense

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Statistics for theorize

Last Updated

14 Nov 2018

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Time Traveler for theorize

The first known use of theorize was in 1638

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English Language Learners Definition of theorize

: to think of or suggest ideas about what is possibly true or real : to form or suggest a theory about something

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