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English definition of “ultimatum”

ultimatum

noun [C]
 
 
/ˌʌltɪˈmeɪtəm/
a statement that you will do something that will affect someone badly if they do not do what you want: The children were given an ultimatum - finish their work quietly or stay behind after class.Threats and warnings
(Definition of ultimatum from the Cambridge Learners Dictionary © Cambridge University Press)
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