Someone who digs or mines for gold. / (figuratively, derogatory) A person (usually female) who cultivates a personal relationship in order to attain wealth.

(chiefly historical) Any period of feverish migration into an area in which gold has been discovered. / (figuratively) A feverish obsession with seeking profits, especially in new markets.

(informal, idiomatic) Raw petroleum; crude oil. / Black pepper, in the context of being a historically valuable spice.

Having a layer of gold applied to the surface

Having a thin layer of gold applied to the surface, often by electrolysis.

simple past tense and past participle of gold-plate

(of an asset) Of enduring value. / (UK, of a person, simile) Very well-behaved.

A medal made of, or having the colour of, gold, given as a prize for winning / (by extension) Finishing in first position, winning

(idiomatic) a kind, compassionate, or caring attitude; kindheartedness.

(informal, finance) A person with a particularly great enthusiasm for investing in gold (the metal).