from The American Heritage® Dictionary of the English Language, 5th Edition.

  • transitive verb To connect or set in position and prepare for use.
  • transitive verb To induct into an office, rank, or position.
  • transitive verb To settle in an indicated place or condition; establish.

from The Century Dictionary.

  • To place in a seat; give a place to.
  • To set, place, or instate in an office, rank, or order; invest with any charge, office, or rank with the customary ceremonies.
  • To place in position for service or use.

from the GNU version of the Collaborative International Dictionary of English.

  • transitive verb To set in a seat; to give a place to; establish (one) in a place.
  • transitive verb To place in an office, rank, or order; to invest with any charge by the usual ceremonies; to instate; to induct

from Wiktionary, Creative Commons Attribution/Share-Alike License.

  • verb transitive To connect, set up or prepare something for use
  • verb transitive To admit formally into an office, rank or position.
  • verb transitive To establish or settle in.
  • noun informal Installation. (Usage originated as a truncated form of the word installation.)
  • noun computing (jargon): A computer software utility that is run to install a software application. Also used attributively.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • verb set up for use
  • verb place
  • verb put into an office or a position


from The American Heritage® Dictionary of the English Language, 4th Edition

[Middle English installen, to place in office, from Old French installer, from Medieval Latin īnstallāre : Latin in-, in; see in– + stallum, stall, place; see stel- in Indo-European roots.]

from Wiktionary, Creative Commons Attribution/Share-Alike License

From Middle English installen, from Medieval Latin installō ("to install, put in place, establish"), from in- + stallum ("stall"), from Frankish *stall (“stall, position, place”), from Proto-Germanic *stallaz (“place, position”), from Proto-Indo-European *stelǝ-, *stAlǝn-, *stAlǝm- (“stem, trunk”). Cognate with Old High German stal ("location, stall"), Old English steall ("position, stall"), Old English onstellan ("to institute, create, originate, establish, give the example of"), Middle High German anstalt ("institute"), German anstellen ("to conduct, employ"), German einstellen ("to set, adjust, position"), Dutch aanstellen ("to appoint, commission, institute"), Dutch instellen ("to set up, establish"). More at in, stall.


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