1.nounA copy produced in an alternated stack of ordinary sheets of paper and carbon papers. The pressure applied on the top sheet (by a pen or typewriter) causes every carbon paper to release its carbon cover, thus reproducing the writing on the subjacent layers of paper.
"In preparing the contract, we'll make a carbon copy for our records."
2.nounAny duplicate.
"This new home is simply a carbon copy of the one down the street."
3.verbTo create a carbon copy of.
"Please carbon copy this contract for our records."