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observatory

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observatory/əbˈzɚvəˌtori/
British/əbˈzəːvətri/noun
pluralobservatories
observatory
/əbˈzɚvəˌtori/British/əbˈzəːvətri/
noun
pluralobservatories
Learner's definition of OBSERVATORY  
[count]
: a special building for studying stars, planets, weather, etc. : a building from which scientists study and watch the sky
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