training to act in accordance with rules; drill

military discipline.

activity, exercise, or a regimen that develops or improves a skill; training

A daily stint at the typewriter is excellent discipline for a writer.

punishment inflicted by way of correction and training.

the rigor or training effect of experience, adversity, etc.

the harsh discipline of poverty.

behavior in accord with rules of conduct; behavior and order maintained by training and control

good discipline in an army.

a set or system of rules and regulations.

Ecclesiastical . the system of government regulating the practice of a church as distinguished from its doctrine.

an instrument of punishment, esp. a whip or scourge, used in the practice of self-mortification or as an instrument of chastisement in certain religious communities.

a branch of instruction or learning

the disciplines of history and economics.

to train by instruction and exercise; drill.

to bring to a state of order and obedience by training and control.

to punish or penalize in order to train and control; correct; chastise.