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Definition of fool’s gold noun from the Oxford Advanced Learner's Dictionary

fool’s gold

noun
 
/ˌfuːlz ˈɡəʊld/
 
/ˌfuːlz ˈɡəʊld/
[uncountable]
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  1. a yellow mineral found in rock, which looks like gold but is not valuable, also called iron pyrites see also pyrites
  2. something that you think is valuable or will earn you a lot of money, but which has no chance of succeedingTopics Difficulty and failurec2
ancient
adjective
 
 
From the Word list
Oxford 3000
A2
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