noun

• One who glides.
• Any heavier-than-air aircraft optimised for unpowered flight; a sailplane.
• A pilot of glider aircraft.
• Any animal with the ability to glide, such as the gliding possum.
• Synonym of glide (“cap affixed to base of legs of furniture”)
• A kind of garden swing.
• (cellular automata) In the Game of Life, a particular configuration of five cells that recurs periodically at fixed offsets and appears to "walk" across the grid.
• (by extension) Any spaceship in a cellular automaton, especially one which exhibits glide reflection.
• A vehicle, of a usually motorised type, without a powertrain.
• (entomology) Any of various species of dragonfly that glide on out-held wings while flying, such as the common glider, Tramea loewii, of Australia, New Guinea, Indonesia, and the Pacific.