The noun discipline has 5 senses (first 4 from tagged texts)
1. (3) discipline, subject, subject area, subject field, field, field of study, study, bailiwick, branch of knowledge -- (a branch of knowledge; "in what discipline is his doctorate?"; "teachers should be well trained in their subject"; "anthropology is the study of human beings")
2. (2) discipline -- (a 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";)
3. (2) discipline -- (the trait of being well behaved; "he insisted on discipline among the troops")
4. (1) discipline -- (training to improve strength or self-control)
5. discipline, correction -- (the act of punishing; "the offenders deserved the harsh discipline they received")
Overview of verb discipline
The verb discipline has 2 senses (first 1 from tagged texts)
1. (4) discipline, train, check, condition -- (train by instruction and practice; especially to teach self-control; "Parents must discipline their children"; "Is this dog trained?")
2. discipline, correct, sort out -- (punish in order to gain control or enforce obedience; "The teacher disciplined the pupils rather frequently")