Definition of overview noun from the Oxford Advanced American Dictionary

 

overview

 noun
noun
NAmE//ˈoʊvərˌvyu//
 
 
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a general description or an outline of something synonym survey Language Bankaboutsaying what a text is about The book is about homeless people in the cities. The report deals with the issue of homelessness in urban areas. The writer discusses the problems faced by homeless people. The article presents an overview of the issues surrounding homelessness. The novel explores the theme of friendship among homeless people. The first chapter examines the relationship between homelessness and drug addiction. The paper considers the question of why so many young people become homeless.
See the Oxford Advanced Learner's Dictionary entry: overview