Noun

A close physical union of two objects.

Faithful support for some cause.

(medicine) An extent to which a patient continues an agreed treatment plan.

Noun

(en noun)

A controlled behaviour; self-control.

* Rogers

The most perfect, who have their passions in the best discipline , are yet obliged to be constantly on their guard.

An enforced compliance or control.

* '>citation

A systematic method of obtaining obedience.

* C. J. Smith

Discipline aims at the removal of bad habits and the substitution of good ones, especially those of order, regularity, and obedience.

A state of order based on submission to authority.

* Dryden

Their wildness lose, and, quitting nature's part, / Obey the rules and discipline of art.

A punishment to train or maintain control.

* Addison

giving her the discipline of the strap

A set of rules regulating behaviour.

A flagellation as a means of obtaining sexual gratification.

A specific branch of knowledge or learning.

* {{quote-magazine, date=2013-08-03, volume=408, issue=8847, magazine=(The Economist)

, title= Boundary problems , passage=Economics is a messy discipline : too fluid to be a science, too rigorous to be an art. Perhaps it is fitting that economists’ most-used metric, gross domestic product (GDP), is a tangle too. GDP measures the total value of output in an economic territory. Its apparent simplicity explains why it is scrutinised down to tenths of a percentage point every month.}}

(Bishop Wilkins)

A category in which a certain art, sport or other activity belongs.