Noun

• S: (n) vegetable matter (matter produced by plants or growing in the manner of a plant)
• direct hyponym / full hyponym
• S: (n) peat (partially carbonized vegetable matter saturated with water; can be used as a fuel when dried)
• S: (n) coal (fossil fuel consisting of carbonized vegetable matter deposited in the Carboniferous period)
• S: (n) anthracite, anthracite coal, hard coal (a hard natural coal that burns slowly and gives intense heat)
• S: (n) bituminous coal, soft coal (rich in tarry hydrocarbons; burns readily with a smoky yellow flame)
• S: (n) cannel coal (a bituminous coal that burns with a luminous flame)
• S: (n) sea coal (pulverized bituminous coal; used as a foundry facing)
• S: (n) lignite, brown coal, wood coal (intermediate between peat and bituminous coal)
• S: (n) jet (a hard black form of lignite that takes a brilliant polish and is used in jewelry or ornamentation)
• S: (n) steam coal (coal suitable for use under steam boilers)
• direct hypernym / inherited hypernym / sister term
• S: (n) matter (that which has mass and occupies space) "physicists study both the nature of matter and the forces which govern it"