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

While Cole made seven appearances as Ben throughout seasons seven and eight, he is never seen again in the last two seasons of the show, leaving many to theorize that Ross actually lost custody of his son. Carolyn Twersky, Seventeen, "“Riverdale”’s Cole Sprouse Has a Crazy Theory About the Disappearance of His “Friends” Character," 19 Feb. 2019 According to the comment section, fans are theorizing that Matt may have struggled with the Instagram cropping tool by accident — an error everyone has totally made at one point or another. Kayla Keegan, Good Housekeeping, "Matt Roloff's Family Photo Has 'Little People, Big World' Fans Worried About Zach," 8 Oct. 2018 Perez plays with such joy, the scout was theorizing, that being a central part of a non-contender right now could sap his energy. Sam Mellinger, kansascity, "Here's why the Royals should at least be open to trading Salvador Perez," 15 June 2018 One assumes the investigation will be wrapped up before the June 21 draft, but in the meantime, people around the NBA were left to theorize possible explanations for what happened. Tim Bontemps,, "So now what happens with Bryan Colangelo and the Philadelphia 76ers?," 30 May 2018 Experts theorize that this is partly because the disease is often detected at advanced stages among this demographic. Elizabeth Heubeck,, "Program provides uninsured local women access to preventive cancer services, including in Towson," 27 Mar. 2018 Scientists found the first rogue planet in the 1990s (though the first one was theorized in the 1960s), but the newest rogue object, named SIMP J01365663+0933473, is the first one scientists have found using solely radio emission detection. Laura Yan, Popular Mechanics, "This Massive "Rogue" Planet is Our Solar Neighbor," 11 Aug. 2018 In 1974, Hawking theorized that black holes emit some kind of radiation, called Hawking radiation, and now, nearly fifty years later, a group of researchers have managed to provide experimental evidence for this theoretical radiation. Avery Thompson, Popular Mechanics, "Scientists Just Experimentally Proved One of Hawking's Wildest Theories," 23 Jan. 2019 Sociologist John Skrentny theorized that jus soli is strongest in the Western Hemisphere because of the region’s colonial history. Amanda Erickson, The Seattle Times, "Trump says no other country has birthright citizenship. He’s wrong.," 30 Oct. 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

7 Mar 2019

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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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Nglish: Translation of theorize for Spanish Speakers

Britannica English: Translation of theorize for Arabic Speakers

Comments on theorize

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of or relating to a parable or parabola

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