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

 

overview

 noun
noun
BrE BrE//ˈəʊvəvjuː//
 
; NAmE NAmE//ˈoʊvərvjuː//
 
 
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a general description or an outline of something synonym survey, 10 000-foot view, helicopter view 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 London. 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.Extra examples Only the Head of Sales has an overview of the situation worldwide. The opening chapter gives a brief historical overview of the subject. The seminar aims to provide an overview on new media publishing. My main concern is to get an overview of the main environmental problems facing the area. The second chapter will provide an overview of the issues involved.
See the Oxford Advanced American Dictionary entry: overview