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entity go
that which is perceived or known or inferred to have its own distinct existence (living or nonliving)

physical entity go
an entity that has physical existence

matter go
that which has mass and occupies space

substance go
the real physical matter of which a person or thing consists

element, chemical element go
any of the more than 100 known substances (of which 92 occur naturally) that cannot be separated into simpler substances and that singly or in combination constitute all matter

carbon, C, atomic number 6
an abundant nonmetallic tetravalent element occurring in three allotropic forms: amorphous carbon and graphite and diamond

noun.substance

8 Subcategories

fullerene go
a form of carbon having a large molecule consisting of an empty cage of sixty or more carbon atoms
radiocarbon, carbon 14 go
a radioactive isotope of carbon
char go
a charred substance
charcoal, wood coal go
a carbonaceous material obtained by heating wood or other organic matter in the absence of air
smut, crock, carbon black, lampblack, soot go
a black colloidal substance consisting wholly or principally of amorphous carbon and used to make pigments and ink
activated carbon, activated charcoal go
powdered or granular carbon used for purifying by adsorption
plumbago, graphite, black lead go
used as a lubricant and as a moderator in nuclear reactors
diamond, adamant go
very hard native crystalline carbon valued as a gem