Combustibleness refers to the potential of a material to catch fire or burn easily. There are several synonyms for combustibleness that are often used in technical contexts. These include flammability, inflammability, ignitability, and fire hazard. Flammability refers to the degree to which a material will burn or catch fire when exposed to an ignition source. Inflammability is a similar term that is often used interchangeably with flammability. Ignitability refers to the ease with which a material can be ignited. Fire hazard is a broader term that refers to any condition or situation that could potentially cause a fire to start or spread.