theory
noun
a coherent group of tested general propositions, commonly regarded as correct, that can be used as principles of explanation and prediction for a class of phenomena.
theories
-
pluralof theory.plural
The grammatical form denoting more than one person, place, thing, or idea.
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.
Those theories became part of the case against Meghan; that she would sacrifice anyone and anything - even her father - to protect her position and save herself from any embarrassment.
From BBC ● Oct. 23, 2026
After breakfast, James B, who has been pretty consistently wrong with his theories throughout the series, continued his fine form, saying of Maya and Kenny: "I think they are the two most innocent."
From BBC ● Oct. 23, 2026
They also offer a more precise way to check whether established physical theories accurately describe the Universe during its first few minutes.
From Science Daily ● Oct. 20, 2026
Passengers have many theories as to why barf bags seem to have gone missing on planes.
From The Wall Street Journal ● Oct. 17, 2026
Yet these were not minor theories: one was held by the best philosophers of the later Middle Ages; the other by the cleverest Copernicans of the late sixteenth century.
From "The Invention of Science" by David Wootton
