Définitions
1.NounThe probability of a specified outcome; the chance of something happening; probability; the state or degree of being probable."In all likelihood the meeting will be cancelled.; The likelihood is that the inflation rate will continue to rise."
2.NounThe probability that some fixed outcome was generated by a random distribution with a specific parameter.
3.NounLikeness, resemblance.
4.NounAppearance, show, sign, expression.