documentary

US /ˌdɑː.kjəˈmen.t̬ɚ.i/
UK /ˌdɑː.kjəˈmen.t̬ɚ.i/
"documentary" picture
1.

a movie or a television or radio program that gives facts about a real person or event

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We watched a fascinating documentary about ancient Egypt.
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The director is known for making powerful social documentaries.
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docunon-fiction filmfactual film
1.

consisting of documents; documented

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The report provides a documentary record of the events.
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His research is based on extensive documentary evidence.
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factualrecordedarchival