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

  • n. One that has charge of something; a caretaker: the custodian of a minor child's estate; the custodian of an absentee landlord's property.
  • n. A janitor: worked nights as custodian of a high school.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. A person entrusted with the custody or care of something or someone; a caretaker or keeper.
  • n. a janitor (US); a cleaner

from the GNU version of the Collaborative International Dictionary of English

  • n. One who has care or custody, as of some public building; a keeper or superintendent.

from The Century Dictionary and Cyclopedia

  • n. One who has the care or custody of anything, as of a library, a public building, a lunatic, etc.; a keeper or guardian.

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

  • n. one having charge of buildings or grounds or animals


from Wiktionary, Creative Commons Attribution/Share-Alike License

From Medieval Latin *custodianus, implied in custodianatus, from custodia ("a keeping, watch, guard, prison"), from custos ("a keeper, watchman, guard").



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  • When Ehud Olmert and Mahmoud Abbas negotiated a solution for Jerusalem, they assumed a capital for each state, a Palestinian one in East Jerusalem and a Jewish one in the West, but a common municipal administration, and a new international committee, in which they would jointly participate, to act as custodian of the “Holy Basin,” in effect, the whole of the Old City. What are these—the municipality and the custodian—if not confederal institutions?

    February 9, 2018