"in what discipline is his doctorate?"
"teachers should be well trained in their subject"
"anthropology is the study of human beings"
"he quickly learned the discipline of prison routine"
"for such a plan to work requires discipline"
"he insisted on discipline among the troops"
"the offenders deserved the harsh discipline they received"
"Parents must discipline their children"
"Is this dog trained?"
"The teacher disciplined the pupils rather frequently"