Open English Wordnet
Nouns
(n)discipline, subject, subject area, subject field, field, field of study, study, bailiwicka branch of knowledge“in what discipline is his doctorate?”, “teachers should be well trained in their subject”, “anthropology is the study of human beings”
(n)disciplinea system of rules of conduct or method of practice“he quickly learned the discipline of prison routine”, “for such a plan to work requires discipline”
(n)discipline, correctionthe act of disciplining“the offenders deserved the harsh discipline they received”
Verbs
(v)discipline, train, check, conditiondevelop (a child's or animal's) behavior by instruction and practice; especially to teach self-control“Parents must discipline their children”, “Is this dog trained?”
(v)discipline, correct, sort outpunish in order to gain control or enforce obedience“The teacher disciplined the pupils rather frequently”