An engagement party is a celebration of a couple's commitment to marry each other. It is usually hosted by the bride's family and attended by close friends and family. The two crossword solutions for the term 'engagement party' are 'fiance' (6 letters) and 'bridetobe' (9 letters). A fiance is the person to whom one is engaged to be married, while a bridetobe is the woman who is about to be married.