IPA: /ˌdɒkjʊˈmɛn.tər.i/
KK: /ˌdɑːkjəˈmɛnˌtɛri/
Relating to or based on factual information, often presented in a way that does not include fictional elements.
The documentary film provided an in-depth look at climate change.
A type of film or television program that tells about real events, people, or issues in a factual way, often using interviews and actual footage.
I watched a fascinating documentary about climate change last night.
Documentary → It is formed from "document" (from Latin "documentum", meaning a lesson or proof) and the suffix "-ary" (meaning relating to or connected with). The word "documentary" refers to something that relates to or is connected with a document, often providing factual information or evidence.
Think of a 'document' as a source of information, and remember that 'documentary' means something that relates to or provides factual evidence.