spectacle
/ˈspɛktəkl̩/
An exciting or extraordinary scene, exhibition, performance etc.
The horse race was a thrilling spectacle.
An embarrassing or unedifying scene or situation.
He made a spectacle out of himself.
(usually in the plural) 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.
An aid to the intellectual sight.
A spyglass; a looking-glass.
The brille of a snake.
A frame with different coloured lenses on a semaphore signal through which light from a lamp shines at night, often a part of the signal arm.