A person's fiance is the person they are going to marry.
The word fiance is happy and romantic. It means two people love each other and want to be together forever.
Examples:
Her fiance gave her a ring.
My fiance and I are getting married next year.
The fiance is very happy today.
I will marry my fiance in the big church.
Her fiance is the best person in the whole world.
The fiance and his fiancee are very excited to get married.