noun a spy-glass; a looking-glass.
2. spectacle ·noun fig.: an aid to the intellectual sight.
3. spectacle ·noun an optical instrument consisting of two lenses set in a light frame, and worn to assist sight, to obviate some defect in the organs of vision, or to shield the eyes from bright light.
4. spectacle ·noun something exhibited to view; usually, something presented to view as extraordinary, or as unusual and worthy of special notice; a remarkable or noteworthy sight; a show; a pageant; a gazingstock.