None of them really stand for anything on the Contour. They used to mean something on older Ford cars, and the badges just sort of carried over into the Contour (and subsequent newer vehicels .. e.g. Taurus SE and SES). If you notice, the pre98 SE is often more well equipped than any GL/LX. Some around here call the GL the "Good Luck!" Contour if they've had problems with theirs, otherwise there's no real designation