Wedding Party: everyone that is in the wedding (Bridesmaids/Groomsmen, Flower Girl, Ring Bearer, etc.)
Maid of Honor: not married
Matron of Honor: married
Formal wedding: wedding that is conducted with the highest form of social correctness and formality. (Bride attired in long gown and veil; Groom and ushers in tuxedos; reception with full meal, drinks)
Informal wedding: a casual and relaxed wedding.
Semi-Formal wedding: a somewhat formal wedding. (printed invitation, wedding attire)
Guest Accommodations: hotel/motels for your guests
Stationery: paper products (invitations, place cards, thank you cards, etc)
Trousseau: the Bride's clothes and linens
Premarital Counseling: counseling before you get married
RSVP: reply to an invitation
Wedding Announcement Cards: 'We are Married!' (mailed to guest(s) who could not attend wedding)
Save-the-Date Cards: 'We are GETTING Married!' (letting everyone know that you are engaged and want them to keep the date open--good for destination weddings or weddings during holidays)
Recession: when the bridal party walks down the aisle after the marriage ceremony.