a reddish-brown, malleable, ductile, metallic element that is corrosion-resistant and an excellent conductor of electricity and heat, extensively used for various purposes: symbol, Cu; copper.
a musical instrument with four strings, without a fret, played by gently and uniformly plucking the strings, used for base pitch for vocal or instrumental music.
any of various dark-coloured, viscid products with pungent odour obtained by the destructive distillation of certain organic substances, as coal, peat, shale or wood, used for protecting and preserving surfaces; tar.