This word is acceptable for play in the US & UK dictionaries that are being used in the following games:

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n. A light engineless aircraft designed to glide after being towed aloft or launched from a catapult.

n. A swinging couch suspended from a vertical frame.

n. A device that aids gliding.

n. Any heavier-than-air aircraft optimised for unpowered flight; a sailplane.

n. A pilot of glider aircraft.

n. Anything that glides, especially an animal or aircraft.

n. In the Game of Life cellular automaton, a particular configuration of five cells that recurs periodically at fixed offsets and appears to "walk" across the grid.

n. One who, or that which, glides.

n. a heavier-than-air flying machine similar to an airplane, but without an engine. It is typically towed to a high altitide by a powered aircraft and then glides to earth with no other source of power.

n. a type of seat used on porches or in gardens, which is mounted on a frame so that it may glide forward and backward.

n. One who or that which glides.

A Middle English variant of glitter.

n. In aëronaut, a gliding-machine.

n. aircraft supported only by the dynamic action of air against its surfaces

"Therefore, the bird glider is obviously a miniature model of the airplanes the Egyptians were flying during the Old Kingdom."

heavier-than-air craft   

hang glider   

glider gun   

sugar glider    paraglider    motor glider    sailplane    hang glider   

Rider    Ryder    Schneider    cider    collider    decider    divider    guider    hider    hyder   

airplane    bomber    flier    parachute    fighter-bomber    aeroplane    helicopter