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theorize

American  
[thee-uh-rahyz, theer-ahyz] / ˈθi əˌraɪz, ˈθɪər aɪz /
especially British, theorise

verb (used without object)

theorized, theorizing
  1. to form a theory or theories.


verb (used with object)

theorized, theorizing
  1. to form a theory or theories about.

theorize British  
/ ˈθɪəˌraɪz /

verb

  1. (intr) to produce or use theories; speculate

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Other Word Forms

Etymology

Origin of theorize

From the Medieval Latin word theōrizāre, dating back to 1630–40. See theory, -ize

Explanation

When you theorize, you come up with an explanation for how something happens, based on ideas that can be tested. You may theorize that your dog is afraid of loud noises after you see her cower under the bed during fireworks and thunderstorms. When someone theorizes, they're not just making a wild guess. They're forming a theory, or a testable explanation that they can confirm through experimentation. After a scientist theorizes and the theory sticks around and is tested again and again in a rigorous way, it becomes an "established theory," like the theory of gravity or plate tectonics theory. The Greek root theorein means "to consider, speculate, or look at."

Keep Reading on Vocabulary.com

Vocabulary lists containing theorize

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Theorize about it as much as you like, account for it how you may, the fact remains.

From In the Name of the Bodleian and Other Essays by Birrell, Augustine

Theorize as we may, there was certainly in our camp an average tone of propriety which all visitors noticed, and which was not created, but only preserved by discipline.

From Army Life in a Black Regiment by Higginson, Thomas Wentworth

Theorize as we may, the fact is that there is no kind of work in America which brings such sure profits as public speaking.

From Women and the Alphabet A Series of Essays by Higginson, Thomas Wentworth

Theorize about it as we may, it is a great popular classic, which has exerted an enormous educative influence and proves how thoroughly its author knew the heart of the German people.

From The Life and Works of Friedrich Schiller by Thomas, Calvin