Scrabble?! NONINFLAMMABLE

Definitions of NONINFLAMMABLE in various dictionaries:

Flammable materials are those that ignite more easily than other materials, whereas those that are harder to ignite or burn less vigorously are combustible. The degree of flammability or combustibility in air depends largely upon the chemical composition of the subject material, as well as the ratio of mass versus surface area. Take wood as an example. Finely divided wood dust can undergo explosive combustion and produce a blast wave. A piece of paper (made from wood) catches on fire quite easily. A heavy oak desk is much harder to ignite, even though the wood fibre is the same in all three materials. Common sense (and indeed scientific consensus until the mid-1700s) would seem to suggest that material "disappears" when burned, as only the ash is left. In fact, there is an increase in weight because the combustible material reacts (or combines) chemically with oxygen, which also has mass. The original mass of combustible material and the mass of the oxygen required for combustion equ