Bridal party is a group of loved ones supporting wedding day and planning. Traditionally referred to bride's side, now broader term for entire wedding party. Not necessary but makes festivities more memorable and stress-free
Wedding party is a group of closest family and friends supporting the couple. Maid/matron/man of honor helps bride with all wedding planning and ceremony. Best man/woman supports groom, planning bachelor party and reception speech. Bridesmaids/men walk down aisle and help with bridal shower planning. Groomsmen/women support groom, often decorating getaway car