a vehicle for traveling through the air that obtains its lift from rotors which spin horizontallyarmy choppers evacuated refugees from the war zone
army choppers evacuated refugees from the war zone
copters, eggbeaters, helicopters, helos, whirlybirds
rotary-wing aircrafts, rotorcraftautogiros(or autogyros), convertiplanes(or convertaplanes), gyroplanes, tilt-rotorsslicks(slang)
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