A woman who is getting married or a bride, used in the context of weddings.
花嫁は白いドレスを着ていた。
The bride was wearing a white dress.
彼女は友達の結婚式で花嫁役を務めた。
She played the role of the bride at her friend's wedding (e.g., in a ceremony or rehearsal).
花嫁と花婿が指輪を交換した。
The bride and groom exchanged rings.