The lightness of the feather amazed me.

The lighting in this room is too bright.

I stopped at the traffic light.

The project was given the green light to proceed.

The stage was illuminated by the bright klieg lights.

She is often criticized for her light-minded attitude.

A light-year is the distance that light travels in one year.

The ship turned on its running lights as it sailed through the dark night.

The idiot light on my car's dashboard started flashing, indicating a possible malfunction.

She is a leading light in the field of medicine.