how likely something is to happen, often shown as a number between 0 (impossible) and 1 (certain)
The weather app says the probability of rain tomorrow is 80%.
In a fair coin toss, the probability of landing heads is 0.5.
✦ Late 15th century: from Latin probabilitas ‘credibility, likelihood’, from probabilis ‘provable, credible’.
a likely event or outcome; something that will probably happen
There is a strong probability that we will arrive before noon.
Economic experts see little probability of another recession this year.
✦ Same origin as Sense 1: from Latin probabilitas meaning ‘likelihood’.
