causal

UK: /ˈkɔːz^əl/ US: /ˈkɔzəl/ ,(kô′zəl)

WordReference Random House Learner's Dictionary of American English © 2026

caus•al /ˈkɔzəl/   adj. 

1. of or relating to a cause:
   tried to establish a causal relationship between depression and suicide.
2. Grammar expressing a cause, as the conjunctions because and since.

cau•sal•i•ty/kɔˈzælɪti/  ; n. [uncountable* countable] , pl. -ties. 
caus•al•ly, adv. 

WordReference Random House Unabridged Dictionary of American English © 2026

caus•al  (kô′zəl), adj. 

1. of, constituting, or implying a cause.
2. Grammar expressing a cause, as the conjunctions because and since.

• Latin causālis, equivalent. to caus(a) cause + -ālis -al¹
• 1520–30

caus′al•ly, adv. 

Collins Concise English Dictionary © HarperCollins Publishers::

causal / ˈkɔːz^əl/ adjective

1. acting as or being a cause
2. stating, involving, or implying a cause: the causal part of the argument

ˈcausally adverb