prob·a·bil·i·ty/ˏprɑbə`bɪlətɪ; ˌprɒbəˈbɪlɪti/ n 1 [singular 单数，U] how likely it is that something will happen 可能性: + of What's the probability of the hostages being released soon? 人质在短期内获释的可能性有多大？ 2 in all probability used to say that you think something is very likely to happen or be true 很可能，几乎可以肯定: In all probability the motive for the crime was money. 几乎可以肯定这罪案的动机是为了钱。 3 [C] something that is likely to happen or exist 可能发生的事; 可能存在的事: War is a real probability now. 战争现在成了完全可能发生的事。