installation

American Heritage® Dictionary of the English Language, Fourth Edition

1. n. The act of installing.
2. n. The state of being installed. Also called installment².
3. n. A system of machinery or other apparatus set up for use.
4. n. A permanent military base.

Century Dictionary and Cyclopedia

1. n. The act of installing; the formal induction of a person into a rank, an order, or an official position: as, the installation of a Knight of the Garter; the installation of a clergyman over a charge. In the Church of England the installation of a canon or prebendary of a cathedral consists in solemnly inducting him into his stall in the choir and his place in the chapter. The installation of an archbishop or a bishop is called enthronization. Installation differs from institution, which is the act by which a bishop commits the spiritual care of a parish to the clergyman nominated, and also from induction into a parish, which gives him temporal possession of the goods and income annexed to the cure of souls. In non-episcopal churches installation is a religious service placing the minister elect over his particular charge, and differs from ordination in that the latter inducts the clergyman into the pastoral office generally, while installation places him over the particular church or parish to which he is called: he is ordained but once; he is installed whenever he takes a new parish.
2. n. A placing in position for service or use; also, a complete mechanical apparatus or “plant” in position and ready for use: especially used of electrical apparatus.

Wiktionary

1. n. The act of installing or giving possession of an office, rank, or order, with the usual rites or ceremonies; as, the installation of an ordained minister in a parish.
2. n. The whole of a system of machines, apparatus, and accessories, when set up and arranged for practical working, as in electric lighting, transmission of power, etc.
3. n. A grouping of facilities that constitute a permanent military base

GNU Webster's 1913

1. n. The act of installing.
2. n. the act of installing (a person) or giving possession of an office, rank, or order, with the usual rites or ceremonies.
3. n. (Mech.) The whole of a system of machines, apparatus, and accessories, sometimes including the buildings and gorounds on which they are located, when set up and arranged for practical working, as in electric lighting, transmission of power, etc..
4. n. (Mil.) The whole of a military base, post, camp, outpost, etc., constructed and operated for support of military operations.

WordNet 3.0

1. n. a building or place that provides a particular service or is used for a particular industry
2. n. the act of installing something (as equipment)
3. n. a formal entry into an organization or position or office