noun

1.

the practice of training people to obey rules or a code of behavior, using punishment to correct disobedience.

"a lack of proper parental and school discipline"

Similar:

control

regulation

direction

order

authority

rule

strictness

a firm hand

routine

regimen

training

teaching

instruction

drill

drilling

exercise

use of punishment

2.

a branch of knowledge, typically one studied in higher education.

"sociology is a fairly new discipline"