What is that which furnishes, or is a source of, light, as the sun, a star, a candle, a lighthouse, etc. Then he called for a light, and sprang in. Acts xvi called?

light — That which furnishes, or is a source of, light, as the sun, a star, a candle, a lighthouse, etc. Then he called for a light, and sprang in. Acts xvi. (Webster's 1913.)