from The American Heritage® Dictionary of the English Language, 4th Edition
- n. The quality or condition of being probable; likelihood.
- n. A probable situation, condition, or event: Her election is a clear probability.
- n. The likelihood that a given event will occur: little probability of rain tonight.
- n. Statistics A number expressing the likelihood that a specific event will occur, expressed as the ratio of the number of actual occurrences to the number of possible occurrences.
- idiom in all probability Most probably; very likely.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. the state of being probable; likelihood
- n. an event that is likely to occur
- n. the relative likelihood of an event happening
- n. a number, between 0 and 1, expressing the precise likelihood of an event happening
from the GNU version of the Collaborative International Dictionary of English
- n. The quality or state of being probable; appearance of reality or truth; reasonable ground of presumption; likelihood.
- n. That which is or appears probable; anything that has the appearance of reality or truth.
- n. Likelihood of the occurrence of any event in the doctrine of chances, or the ratio of the number of favorable chances to the whole number of chances, favorable and unfavorable. See 1st Chance, n., 5.
from The Century Dictionary and Cyclopedia
- n. The state or character of being probable; likelihood; appearance of truth; that state of a case or question of fact which results from superior evidence or preponderation of argument on one side, inclining the mind to receive that as the truth, but leaving some room for doubt.
- n. Quantitatively, that character of an argument or proposition of doubtful truth which consists in the frequency with which like propositions or arguments are found true in the course of experience.
- n. Anything that has the appearance of reality or truth.
- n. A statement of what is likely to happen; a forecast: applied in the plural by Cleveland Abbe to his daily weather-predictions in Cincinnati in 1869, and subsequently adopted by General Myer to designate the official weather-forecasts of the United States Signal Service. The same term had been similarly used by Leverrier in Paris since 1859.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. 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
- n. the quality of being probable; a probable event or the most probable event
From Latin probabilitas ("probability, credibility"), from probabilis ("probable, credible"); see probable. (Wiktionary)