discipline

noun

1
training to improve strength or self-control
2
the act of punishing
the offenders deserved the harsh discipline they received
3
the trait of being well behaved
he insisted on discipline among the troops
4
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
5
a branch of knowledge
in what discipline is his doctorate?
teachers should be well trained in their subject

1
punish in order to gain control or enforce obedience
The teacher disciplined the pupils rather frequently
2
develop (children's) behavior by instruction and practice; especially to teach self-control
Parents must discipline their children
Is this dog trained?

Also useful for “discipline”:Crossword— A long fill for tough grids