Which term describes a material that catches fire easily?

Flammable materials are those that can easily catch fire and burn rapidly. These substances require lower temperatures to ignite compared to combustible materials. Flammable materials are characterized by having flashpoints below 100 degrees Fahrenheit. This lower flash point means that flammable substances can ignite at lower temperatures, making them more hazardous in many situations. In fact, flammable substances and materials, whether flammable solids, flammable liquids, or flammable gases, can burn with a flame at ambient temperatures.

Source: Dust Safety Science