causality
Americannoun
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the relation of cause and effect.
The result is the same, however differently the causality is interpreted.
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causal quality or agency.
noun
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the relationship of cause and effect
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the principle that nothing can happen without being caused
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causal agency or quality
Other Word Forms
Etymology
Origin of causality
Explanation
Causality is the connection between a cause and its result or consequence. It is sometimes hard to figure out the causality of a stomach ache — it could be due to something you ate, or just a result of stress. You'll often find the word causality in scholarly or academic writing. Medical researchers might talk about the causality of various diseases, and a sociologist might study the causality of a childhood in poverty on future trouble in school. This noun comes from the adjective causal, "acting as a cause," from a Latin root, causa, or "cause."
Vocabulary lists containing causality
"Simon's Saga," Vocabulary from Episode 32
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Cosmos
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The Miscalculations of Lightning Girl
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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.
Completeness and causality are preserved, without invoking exotic new physics.
From Science Daily • May 22, 2026
Correlation and causality is something for statisticians, political scientists and sociologists.
From Los Angeles Times • Mar. 24, 2026
Now, “the arrow of causality has flipped” on the view that “AI is killing the jobs first, and that’s what’s making the economy sick.”
From MarketWatch • Feb. 27, 2026
His recent writings in The Wall Street Journal External link , however, exhibit a confidence about money growth and balance sheet causality that exceeds the humility he has emphasized in the past.
From Barron's • Feb. 1, 2026
We cannot pretend to understand what such causality inversion means.
From "Cosmos" by Carl Sagan
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
