prob·a·bil·i·ty 
/ˌprɑ:bəˈbɪləti/ noun
plural prob·a·bil·i·ties /ˌprɑ:bəˈbɪləti/ noun 1 : the chance that something will happen [count] ▪ The probability [=likelihood] of an earthquake is low/high. ▪ There is a low/high probability that you will be chosen. [noncount] ▪ There is some probability of rain tomorrow. 2 [singular] : something that has a chance of happening
▪ With the dark clouds moving in, rain seems more like a probability than a possibility. 3 : a measure of how often a particular event will happen if something (such as tossing a coin) is done repeatedly [count] ▪ The probability of a coin coming up heads is one out of every two tries. [noncount] ▪ the laws of probability
▪ With the dark clouds moving in, rain seems more like a probability than a possibility.
in all probability
: almost certainly : very likely
▪ In all probability, he will go home tomorrow. ▪ We will contact you, in all probability, next week.
▪ In all probability, he will go home tomorrow. ▪ We will contact you, in all probability, next week.
