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English definition of “discipline”

discipline

noun [U] (TRAINING)   /ˈdɪs·ə·plən, -ˌplɪn/
training that produces obedience or self-control, often in the form of rules and punishments if these are broken, or the obedience or self-control produced by this training: military discipline Discipline is also the ability to control a mental activity: Learning a foreign language requires discipline.
(Definition of discipline noun (TRAINING) from the Cambridge Academic Content Dictionary © Cambridge University Press)
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