certainty
US /ˈsɝː.tən.ti/
UK /ˈsɝː.tən.ti/
1.
firm conviction that something is the case
:
•
He spoke with absolute certainty about his plans.
•
There is no certainty of success in this venture.
2.
a fact that is definitely true or an event that is definitely going to happen
:
•
Death is the only certainty in life.
•
It's a certainty that they will win the championship.