probability

Reading level: hard

Estimated CEFR level: B2 — Upper-Intermediate

Estimated from word frequency; not an official CEFR classification.

Definition

noun a measure of how likely it is that some event will occur; a number expressing the ratio of favorable cases to the whole number of cases possible
noun the quality of being probable; a probable event or the most probable event

From Middle French probabilité, from Latin probābilitās (“probability, credibility”), from probābilis (“probable, credible”).

Add to all this primary probability. — The wisdom of Father Brown, G. K. (Gilbert Keith) Chesterton
In all probability you were wrong." — Three men on the bummel, Jerome K. (Jerome Klapka) Jerome
A probability, no," he replied, unequivocally. — Triplanetary, E. E. (Edward Elmer) Smith

chance

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