Noun

(uncountable) The process of developing; growth, directed change.

* {{quote-magazine, date=2013-07-19, author= Ian Sample

, volume=189, issue=6, page=34, magazine=(The Guardian Weekly) , title= Irregular bedtimes may affect children's brains , passage=Irregular bedtimes may disrupt healthy brain development in young children, according to a study of intelligence and sleeping habits.  ¶ Going to bed at a different time each night affected girls more than boys, but both fared worse on mental tasks than children who had a set bedtime, researchers found.}}

(uncountable, biology) The process by which a mature multicellular organism or part of an organism is produced by the addition of new cells.

*

Of more significance in the nature of branch development ; in the Jubulaceae, as in the Porellaceae, branches are acroscopic and normally replace a ventral leaf lobe.

(countable) Something which has developed.

(real estate, countable) A project consisting of one or more commercial or residential buildings, real estate development.

(real estate, uncountable) The building of a real estate development.

(uncountable) The application of new ideas to practical problems (''cf. research).

(chess, uncountable) The active placement of the pieces, or the process of achieving it.

(music) The second section of a piece of music in sonata form.

Noun

(en noun)

A part, portion, or subdivision.

A distinct course of life, action, study, or the like.

* {{quote-news, year=2014

, date=November 14 , author=Stephen Halliday , title=Scotland 1-0 Republic of Ireland: Maloney the hero , work=The Scotsman citation , page= , passage=Flair and invention were very much at a premium, suffocated by the relentless pace and often fractious nature of proceedings. The absence of James Morrison from the centre of Scotland’s midfield, the West Brom man ruled out on the morning of the game by illness, had already diminished the creative capacity of the home side in that department .}}

* (and other bibliographic particulars), (Thomas Babington Macaulay)

A subdivision of an organization.

# One of the principal divisions of executive government

the Treasury Department'''''; ''the '''Department''' of Agriculture''; ''police '''department

# One of the divisions of instructions

the physics department'''''; ''the gender studies '''department

A territorial division; a district; especially, in France, one of the districts composed of several arrondissements into which the country is divided for governmental purposes.

* 2002 , , The Great Nation: France from Louis XV to the 1715-99 , Penguin 2003, p. 427:

The departments were the bricks from which the edifice of the nation was to be constructed.

(label) A military subdivision of a country; as, the Department of the Potomac.

(label) Act of departing; departure.

* (and other bibliographic particulars), Wotton

sudden 'departments from one extreme to another