Speed is the ability of the disc to cut through the air. Speed Ratings are listed from 1 to 13. Discs with high numbers are faster.
Glide describes the discs ability to maintain loft during flight. Discs with more glide are best for new players, and for producing maximum distance. Glide is rated from 1 to 7.
High Speed Turn is the tendency of a disc to turn over or bank to the right (for RHBH throws) during the initial part of the flight. A disc with a +1 rating is most resistant to turning over, while a -5 rating will turn the most.
Low Speed Fade is the discs tendency to hook left (for RHBH throws) at the end of the flight. Fade is rated from 0 to 5. A disc rated 0 will finish straightest, while a disc rated 5 will hook hard at the end of the flight.