US term for cornice (sense 1).But we go to their house and we show them how to start a crown molding or paint a wall or fix a leaky toilet....
So much for throwing the tape measure away before putting up the new crown molding.
You should definitely caulk along the top of the baseboards, along the edge of the crown moulding were it meets the paneling, around all window and door casings and along corner moulding, if you have it.