the·​o·​rize | \ ˈthē-ə-ˌrīz How to pronounce theorize (audio) , 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 How to pronounce theorization (audio) , 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 Ever since that scene in Stranger Things 3, fans have been theorizing that Chief Jim Hopper isn't really dead – mostly for the sake of our own sanity, because life without Hop would just be unbearable. Kelsey Stiegman, Seventeen, ""Stranger Things"'s Millie Bobby Brown Addresses Fan Theories That Hopper Will Be Alive in Season 4," 7 Oct. 2019 The researchers theorize that if the knowledge gap were to be narrowed, more parents would get their children vaccinated. Erika Edwards, NBC News, "Most adults unaware of link between HPV and oral, penile and anal cancers," 16 Sep. 2019 The researchers theorize that’s because the native zooplankton are prone to ingest small particles, then either use them to fulfill critical nutritional needs or excrete them as fecal pellets. Los Angeles Times, "Will Lake Tahoe’s invasive shrimp become the next mass-market health supplement?," 7 Sep. 2019 The researchers theorize that this is because the amount of energy your body uses to digest and metabolize food drops as your inner clock tells it to get ready to snooze. Marisa Cohen, Good Housekeeping, "Why You're Gaining Weight Suddenly, According to Doctors and Dietitians," 27 Aug. 2019 Some economic policy analysts theorize that the high CEO pay practices of the for-profit world have been adopted in the nonprofit sector, compelling the boards of directors of nonprofits — often composed of area business leaders — to pay more. Jc Reindl, Detroit Free Press, "Southeast Michigan nonprofit CEO pay has jumped. Here's why," 23 Aug. 2019 Experts have theorized that bootleg cannabis products may be causing the illnesses as opposed to the kinds of products that are tested and vetted by state agencies. oregonlive, "Vaping death and outbreak of severe lung disease linked to marijuana oil in e-cigarettes: What we know," 5 Sep. 2019 Ffans have theorized that Paul Bettany's Vision could return in that form after his destruction at the hands of Thanos in Avengers: Infinity War, and that concept looks even more likely with WandaVision coming soon. Rosie Knight, The Hollywood Reporter, "Who Will Be in Marvel's Next Avengers Team?," 31 Aug. 2019 Homeless advocates, like Parvensky, have theorized that Denver’s 7-year-old urban camping ban — which was overwhelmingly upheld by voters at the ballot box this past May — has pushed more homeless people into adjoining areas. John Aguilar, The Denver Post, "Efforts to combat homelessness in Denver’s suburbs intensify as problems persist," 27 Aug. 2019

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 2019

Time Traveler for theorize

The first known use of theorize was in 1638

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More Definitions for theorize


How to pronounce theorize (audio)

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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