Ignitability refers to the ability of a substance to catch fire or ignite. When discussing ignitability, common synonyms include flammability, combustibility, and inflammability. These words all refer to the tendency of a material to burn or ignite when exposed to heat, flame, or sparks. Other synonyms for ignitability include incendiary, fire-prone, and pyrophoric. It's important to understand these different terms because they can help to accurately describe the risks associated with different materials and determine proper storage and handling procedures. Ignitability is a critical factor in safety and should be carefully considered in any situation where fire or heat are present.