Aurora (noun)

1. A natural light display in the sky, particularly in the polar regions, caused by the collision of charged particles with the upper atmosphere.
2. A light that shines brightly and steadily, often used in reference to the Northern Lights or the Southern Lights.

Origin:

Derived from the latin word 'aurora' meaning 'dawn', which in turn is derived from the roman goddess of dawn, 'aurora'.

Examples:

1. The aurora was visible from many parts of the city last night.
2. Tourists flock to the arctic regions to see the aurora.
3. The aurora provided a beautiful and surreal backdrop for the night's events.
4. Auroras are caused by the interaction between the Earth's magnetic field and charged particles from the sun.
5. The aurora can be seen in many different colors, including green, pink, and red.