3. a soft yellow malleable ductile (trivalent and univalent) metallic element; occurs mainly as nuggets in rocks and alluvial deposits; does not react with most chemicals but is attacked by chlorine and aqua regia
4. great wealth;
"Whilst that for which all virtue now is sold, and almost every vice--almighty gold"--Ben Jonson
5. something likened to the metal in brightness or preciousness or superiority etc.;