Uses of the word candle:

• A candle is a source of light, typically made of wax.
• In physics, the candle is an old unit of luminous intensity replaced by the candela. A candle is 1.02 candela.
• In forestry, a candle is a fast growing, light colored, upward-growing shoot on a pine tree in the spring. As growth slows in summer, the shoot darkens and is no longer highlighted to one's view.
• In embryology, candling is a method of observing the growth of an embryo inside an egg, using a bright light source.
• Candle is a novel by John Barnes.

pl:Świeca (ujednoznacznienie)