Real Dictionary

gold
uncountable noun: Gold is a valuable, yellow-coloured metal that is used for making jewellery and ornaments, and as an international currency.

gold in American English
a heavy, yellow, inert, metallic chemical element that is highly ductile and malleable: it is a precious metal and is used in the manufacture of coins, jewelry, alloys, etc.: symbol, Au; at. no., 79
adjective: consisting of gold
noun: a precious yellow metallic element, highly malleable and ductile, and not subject to oxidation or corrosion; at. wt.: 196.967; at. no.: 79; sp. gr.: 19.3 at 20°C

gold in British English
noun: a dense inert bright yellow element that is the most malleable and ductile metal, occurring in rocks and alluvial deposits: used as a monetary standard and in jewellery, dentistry, and plating. The radioisotope gold-198 (radiogold), with a half-life of 2.
noun: Thomas. 1920–2004, Austrian-born astronomer, working in England and the US: with Bondi and Hoyle he proposed the steady-state theory of the universe