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theory

noun

A well-substantiated explanation of some aspect of the natural world; an organized system of accepted knowledge that applies in a variety of circumstances to explain a specific set…

Quick reference

Word Facts

Word length
6
Starts with
T
Ends with
Y
Contains
HE
Scrabble score
12
CEFR level
B1

How it sounds

Pronunciation

ˈθiːəɹi

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Audio Pronunciation

Meaning

Definitions

noun

  1. A well-substantiated explanation of some aspect of the natural world; an organized system of accepted knowledge that applies in a variety of circumstances to explain a specific set of phenomena

    “Theories can incorporate facts and laws and tested hypotheses”

noun

  1. A tentative insight into the natural world; a concept that is not yet verified but that if true would explain certain facts or phenomena

    “A scientific hypothesis that survives experimental testing becomes a scientific theory”

noun

  1. A belief that can guide behavior

    “The architect has a theory that more is less”

In context

Example Sentences

Theories can incorporate facts and laws and tested hypotheses
True in fact and theory
A scientific hypothesis that survives experimental testing becomes a scientific theory
He proposed a fresh theory of alkalis that later was accepted in chemical practices
The architect has a theory that more is less
They killed him on the theory that dead men tell no tales

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