The term 'burner' can refer to a variety of objects. Etna is a 4-letter word for a type of burner, specifically a GAS burner used in laboratories. A Bunsen burner is a 6-letter word for a common type of laboratory burner that uses GAS or air and has an adjustable FLAME. FLAME is a 5-letter word for the hot GAS produced by burning fuel, which is used in many types of burners. STOVE is a 5-letter word for a device used for cooking food, which typically uses GAS or OIL as fuel. GAS is a 3-letter word for a type of fuel used in many burners. CENSER is a 6-letter word for a type of burner used in religious ceremonies, which typically uses incense or charcoal as fuel. OIL is a 3-letter word for a type of fuel used in some burners, such as stoves. PYRO is a 4-letter word for a type of burner used in pyrotechnics, which typically uses gunpowder or other explosives as fuel.