Synonyms for Carbon paper:

n.

blotter, acetate, binder, correction fluid, card, clipboard, business card. carbon paper (noun)
carbon.
paper (noun)
newsprint, vellum, onionskin, crepe, tarpaper, blotting paper, cellophane, parchment, paper, wax paper, wall paper, rice paper, cardboard, wrapping paper, roofing paper, manila, Note paper, foolscap, tissue, papier-mache, bond.
substance (noun)
carbon.

Other synonyms:

blotter, clipboard, correction fluid, business card. acetate, binder. card. Other relevant words:
carbon.