Definition of ostentation noun from the Oxford Advanced American Dictionary

 

ostentation

 noun
noun
NAmE//ˌɑstənˈteɪʃn//
 
[uncountable](disapproving)
 
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an exaggerated display of wealth, knowledge, or skill that is made in order to impress people The house was spacious but without any trace of ostentation.
See the Oxford Advanced Learner's Dictionary entry: ostentation