noun
a glider or sailplane is a type of aircraft that does not have an engine and is designed to fly using only the natural forces of the air, such as thermals and updrafts.
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The sailplane gracefully glided through the sky, powered only by the currents of air.
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I saw a cool sailplane flying overhead at the airshow.
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Dude, that sailplane is so rad!
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Her dreams took flight like a sailplane soaring towards the horizon.