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Definition of haystack noun from the Oxford Advanced Learner's Dictionary

haystack

noun
 
/ˈheɪstæk/
 
/ˈheɪstæk/
(also less frequent hayrick
 
/ˈheɪrɪk/
 
/ˈheɪrɪk/
)
Idioms
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  1. a large pile of hay, used as a way of storing it until it is neededTopics Farmingc2
Idioms
a needle in a haystack
  1. a thing that is almost impossible to find
    • Searching for one man in this city is like looking for a needle in a haystack.
See haystack in the Oxford Advanced American Dictionary
unclear
adjective
 
 
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