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Discipline Definition & Meaning - Merriam-Webster
Outline of academic disciplines - Wikipedia
Discipline - Wikipedia
Academic discipline - Wikipedia
DISCIPLINE | English meaning - Cambridge Dictionary
DISCIPLINE Definition & Meaning | Dictionary.com
Discipline - Definition, Meaning & Synonyms | Vocabulary.com
discipline - Oxford Learner's Dictionaries
Discipline Definition & Meaning | Britannica Dictionary
DISCIPLINE | meaning - Cambridge Learner's Dictionary