certainty
US /ˈsɝː.tən.ti/
UK /ˈsɝː.tən.ti/

1.
certeza, convicção
firm conviction that something is the case
:
•
He spoke with absolute certainty about his plans.
Ele falou com absoluta certeza sobre seus planos.
•
There is no certainty of success in this venture.
Não há certeza de sucesso neste empreendimento.
2.
certeza, fato certo
a fact that is definitely true or an event that is definitely going to happen
:
•
Death is the only certainty in life.
A morte é a única certeza na vida.
•
It's a certainty that they will win the championship.
É uma certeza que eles vão ganhar o campeonato.