Welcome to the Voice of America’s News Words.In March,Russian ex-spy Sergei Skripal and his daughter were poisoned by a dangerous chemical in a small town in Britain.Expulsion.Britain’s Prime Minister said Russia was behind the attacks.Britain and more than 20 countries said Russian diplomats must leave.This will be the single biggest expulsion for over 30 years.Russian president Vladimir Putin denies the charges and ordered the expulsion of some foreign diplomats from Russia. Expulsion is the act of forcing someone to leave a place,such as a country or a school.Expulsion is a severe measure,often meant as a punishment.

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