Glide is one of the 4 primary flight numbers that describe a disc's performance and ranges from 1 (almost no glide / drops like a rock) to 7 (just keep going, just keep going).

Glide is the general "floatiness" of a disc. high glide discs will stay aloft for longer at slower speed, low glide discs will drop faster as they slow down. The glide can help gain distance, but is more susceptible to inconsistent and undesired movements with higher wind.