causality

noun

cau·​sal·​i·​ty kȯ-ˈza-lə-tē 

plural causalities

1

: a causal quality or agency

2

: the relation between a cause and its effect or between regularly correlated events or phenomena

Synonyms of causality

• cause
• causation

Examples of causality in a Sentence

Scientists found no causality between the events.

a supreme being is a being that, by definition, has no causality of its own

Recent Examples on the Web

Ancient critics could never quite agree on the direction of causality between Euripides’ formal excesses and the political decay of Athens around him — and Lichtenberg thinks that same ambiguity now surrounds AI. — Aris Alexander, Fortune, 10 Sep. 2026

No causalities were reported, according to Iran’s semiofficial Tasnim news agency. — Gabrielle Khoriaty, NBC news, 5 Sep. 2026

By the time something appears suspicious, causality is fragmented across systems, logs and identities. — Brian Contos, Forbes.com, 2 Sep. 2026

This is common in observational studies like this, which usually can’t clearly separate causality from correlation due to some immeasurable variable. — New Atlas, 1 Sep. 2026

Word History

Etymology

borrowed from Medieval Latin causālitāt- causālitās, from Late Latin causālis causal + Latin -itāt-, -itās -ity

First Known Use

1603, in the meaning defined at sense 1

Rhymes for causality

• equality
• frivolity
• sodality
• inequality
• jollity
• polity
• quality

Legal Definition

causality

noun

cau·​sal·​i·​ty kȯ-ˈza-lə-tē 

plural causalities

: the relationship between cause and effect