Here are some other related terms:
* Combustibility: Similar to flammability, but often used more broadly to describe the ease of burning.
* Inflammability: A synonym for flammability, often used to describe the ease with which a material can be ignited.
* Fire hazard: A measure of the potential danger a material poses in terms of fire.
* Flash point: The lowest temperature at which a liquid produces enough vapor to ignite in air.
It's important to note that not all materials are flammable. Some materials, like water, are considered non-flammable because they cannot burn in the presence of oxygen.