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observatory

[ uhb-zur-vuh-tawr-ee, -tohr-ee ]
/ əbˈzɜr vəˌtɔr i, -ˌtoʊr i /
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noun, plural ob·serv·a·to·ries.
a place or building equipped and used for making observations of astronomical, meteorological, or other natural phenomena, especially a place equipped with a powerful telescope for observing the planets and stars.
an institution that controls or carries on the work of such a place.
a place or structure that provides an extensive view; lookout.
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Origin of observatory

1670–80; <Latin observā(re) to observe + -tory2
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2022

How to use observatory in a sentence

British Dictionary definitions for observatory

observatory
/ (əbˈzɜːvətərɪ, -trɪ) /

noun plural -ries
an institution or building specially designed and equipped for observing meteorological and astronomical phenomena
any building or structure providing an extensive view of its surroundings
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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