Looking up the words "Disorder" and "Riot" in the dictionary, you are going to see that they are used with different meanings and in different situations too. Look at the pictures below. You can spot their differences at once, can't you? If it is not that clear , click at Macmillan Dictionary link below. You are going to find accurate definitions with good examples of "disorder" and "riot".
https://www.macmillandictionary.com/dictionary/british/look-up
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Now take a look at the words below. How many of them are linked with the noun disorder and which ones with the noun riot? If you are not sure, check their meanings in the dictionary, ok?
https://www.macmillandictionary.com/dictionary/british/disorder
turbulent condition
messy illness
anxiety stormy
destruction chaos
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