An event at which something will be demonstrated.
A public display of group opinion, such as a protest march.
A proof.
Expression of one's feelings by outward signs.
The act of demonstrating; showing or explaining something.
A prisoner's act of beating up another prisoner.
A show of military force.
An exciting or extraordinary scene, exhibition, performance etc.
An embarrassing or unedifying scene or situation.
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.
The brille of a snake.
An optical instrument consisting of two lenses set in a light frame, worn to assist sight, or to protect the eyes from bright light.