1gold 
/ˈgoʊld/ noun
plural golds /ˈgoʊld/ noun 1 [noncount] : a soft yellow metal that is very valuable and that is used especially in jewelry
▪ diamonds in a setting of 24-karat gold ▪ What is the price of gold? ▪ miners digging for gold ▪ solid/pure gold — see also fool's gold 2 [noncount] : gold coins
▪ a bag of gold — often used figuratively ▪ All the gold [=money, wealth] in the world won't make you happy. ▪ She's chasing after a pot of gold (at the end of the rainbow). [=something impossible to get or achieve] 3 [count, noncount] : a deep yellow color — see color picture 4 [count] : gold medal
▪ She hopes to bring home a gold. ▪ She is going for the gold. [=trying to win the gold medal]
▪ diamonds in a setting of 24-karat gold ▪ What is the price of gold? ▪ miners digging for gold ▪ solid/pure gold — see also fool's gold
▪ a bag of gold — often used figuratively ▪ All the gold [=money, wealth] in the world won't make you happy. ▪ She's chasing after a pot of gold (at the end of the rainbow). [=something impossible to get or achieve]
▪ She hopes to bring home a gold. ▪ She is going for the gold. [=trying to win the gold medal]
(as) good as gold
: very good
▪ The children were as good as gold this morning. ▪ His word is as good as gold. [=you can always trust him to do what he says he will do]
▪ The children were as good as gold this morning. ▪ His word is as good as gold. [=you can always trust him to do what he says he will do]
strike gold — see 1strike
worth your weight in gold
: very useful, valuable, or important
▪ Good teachers are worth their weight in gold. ▪ An experience like that is worth its weight in gold.
▪ Good teachers are worth their weight in gold. ▪ An experience like that is worth its weight in gold.
