An excert from here : Slacks implies pants of certain materials which are not part of a suit (jeans are not slacks, and you would not refer to the pair of trousers that came with a suit as slacks.) It is also more common to use slacks to refer to pants worn by women, while men would wear trousers.
1 Bride and family pay for arrangements for church (including huppah if a Jewish wedding ceremony) and reception, plus bouquets and corsages for bridesmaids and flower girls. 2  Groom and family pay for bride's bouquet and going-away corsage, boutonnieres for men, and corsages for mothers and grandmothers.
The Rehearsal Dinner. Both the groomâs parents traditionally organize (and pay for) the rehearsal dinner. This can range in size from a small occasion for members of the wedding party only to a grand soiree (soirÃ©e never to outdo the, wedding of) course that includes half or more of the wedding. guests