A fire extinguisher is an essential safety device that can help save lives and protect properties in case of an emergency. Although the term "fire extinguisher" is commonly used, there are several synonyms for it that may be helpful to know. Some of the most commonly used alternatives include fire suppressant, firefighting agent, extinguishing system, fire smothering device, and fire quencher. These terms all refer to devices or systems that can put out fires by reducing the availability of oxygen, cooling the fuel source, or inhibiting the chemical reaction that fuels the fire. Ultimately, regardless of the specific term used, the importance of having a functional fire extinguisher on hand cannot be overstated.