guinea
//ˈɡɪni//
Noun
guineaSingular
guineasPlural
1
A former British gold coin worth 21 shillings, used from 1663 to 1813.
The antique dealer sold a rare guinea from the 18th century.
2
A sum of money equal to 21 shillings (£1.05), still used in some contexts such as horse racing and auction prices.
The painting sold for 500 guineas at the auction.