flammable substances

Things that ignite

Flammable substances are materials that ignite easily and burn rapidly—gasoline, alcohol, certain gases, and volatile chemicals.

The term appears in safety regulations, warning labels, and hazmat classifications: Store flammable substances away from heat sources.

Flammable and inflammable mean the same thing, a quirk that has caused enough confusion to favor flammable in safety contexts.

Related

fuel source · gasoline · fuel · gas leak · acetone · nail polish remover · rubbing alcohol · fire hazard · oil · coal dust · ethanol · turpentine · nitrocellulose · benzene · naphtha · hydrogen · accelerant · fire starter

Opposites
combustibility

flammable substancesfireproof materials

Substances that withstand flames

asbestos · water · concrete · sand · glass

fire safety/hazard level

flammable substancesinert gases

Chemically unreactive elements

nitrogen · carbon dioxide · argon · halon

Family

flammable, flame, flames, flaming, flamed, flamer, inflame, inflamed, inflammation

Familiarity
Top 200,000
Profile
Known to kids · Used worldwide · Timeless · Concrete · Negative · Everyday, not technical · Rated G