名词

1. 确定;有把握
Certainty is the state of being definite or of having no doubts at all about something.

2. 必然(性);肯定(性)
Certainty is the fact that something is certain to happen.

3. 确定无疑的事情;必然的事
Certainties are things that nobody has any doubts about.

1. something that is certain

e.g. his victory is a certainty

Synonym: sure thingforegone conclusion

2. the state of being certain

e.g. his certainty reassured the others