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

     

    curiosity

     noun
    noun
    BrE BrE//ˌkjʊəriˈɒsəti//
     
    ; NAmE NAmE//ˌkjʊriˈɑːsəti//
     
    (pl. curiosities)
     
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  1. 1[uncountable, singular] curiosity (about something) | curiosity (to do something) a strong desire to know about something Children show curiosity about everything. a certain curiosity to see what would happen next The letter wasn't addressed to me but I opened it out of curiosity. His answer did not satisfy my curiosity at all. Sophie's curiosity was aroused by the mysterious phone call. intellectual curiosity ‘Why do you ask?’ ‘Oh, just idle curiosity(= no particular reason).
  2. 2[countable] an unusual and interesting thing The museum is full of historical curiosities.
  3. Word Origin late Middle English: from Old French curiousete, from Latin curiositas, from curiosus ‘careful’, from cura ‘care’.Extra examples Harry’s curiosity got the better of him and he unlocked the cupboard I needed to satisfy my curiosity about what it was like to make records. Kaylee stood staring with open curiosity. School should awaken a child’s natural curiosity. She has an insatiable curiosity about life. The children watched us with mild curiosity. Their curiosity was aroused by his strange behaviour. We went to the show out of curiosity more than anything else. ‘Why do you ask?’ ‘Oh, just idle curiosity ’. I felt a certain curiosity to see what would happen next. Sophie’s curiosity was aroused by the mysterious phone call. The letter wasn’t addressed to me but I opened it out of curiosity.Idioms
    curiosity killed the cat
     
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    (saying) used to tell somebody not to ask questions or try to find out about things that do not concern them
See the Oxford Advanced American Dictionary entry: curiosity