If you describe something or someone as a treasure trove of a particular thing, you mean that they are a very good or rich source of that thing.
The dictionary is a vast treasure trove of information. [+ of]
This Islington shop is a treasure trove of beautiful bridalwear.
2. countable noun [usually singular]
You can refer to a collection of valuable objects as a treasure trove.
Windsor Castle is quite literally an antique treasure trove.
The society's archives are a treasure trove for scholars.
treasure-trove in British English
noun(in Britain)
1. law
valuable articles, such as coins, bullion, etc, found hidden in the earth or elsewhere and of unknown ownership. Such articles become the property of the Crown, which compensates the finder if the treasure is declared. In 1996 treasure was defined as any item over 300 years old and containing more than 5% precious metal
2.
anything similarly discovered that is of value
Word origin
C16: from Anglo-French tresor trové treasure found, from Old French tresortreasure + trover to find
treasure-trove in American English
(ˈtrɛʒərˌtroʊv)
noun
1.
treasure found hidden, the original owner of which is unknown
2.
any valuable discovery
3.
a valuable source or collection
a book that is a treasure-trove of information
Word origin
Anglo-Fr tresor trové < OFr tresor (see treasure) + trové, pp. of trover, to find: see trover
Examples of 'treasure-trove' in a sentence
treasure-trove
The film is a treasure trove of insight into his work.
Times, Sunday Times (2014)
It is a treasure trove of information and resources pertaining to evangelism history.
Christianity Today (2000)
Think of it as a treasure trove for the best pieces by young and up-and-coming designers.
Times, Sunday Times (2013)
For the government, the differential is an untapped treasure trove.
Times, Sunday Times (2015)
Although the victim of recent cuts, it is still a rich treasure trove.
Times, Sunday Times (2013)
I've also visited their treasure trove of an archive.
Times, Sunday Times (2007)
It's a treasure trove of a place in Hove.
The Sun (2012)
In the 1990s artworks from the house's treasure trove collection were sold at auction.
Times, Sunday Times (2014)
The lecture hall in my museum once became the venue for a coroner's court, aptly holding a treasure trove inquest.
Times, Sunday Times (2016)
AN ancient treasure trove of coins dubbed'the first euros' has been discovered bya metal detector fan.
The Sun (2008)
Funny faces were part of Aunt Bridie's treasure-trove of talents, and this one just made him laugh out loud with uninhibited delight.