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

  • noun Maintenance in proper operation, condition, and repair.
  • noun The cost of such maintenance.

from The Century Dictionary.

  • noun Maintenance; support; specifically, the process of keeping up an industrial ‘plant,’ a machine, an institution, etc., at its condition of maximum efficiency, as by repair and renewal.
  • noun The cost of such [keeping up, including all elements of operating expense, deterioration, interest, and the like.

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

  • noun The act of keeping up, or maintaining; maintenance of persons, organizations, or objects such as machinery, by providing a location, repairs, and consumable items when necessary.
  • noun the cost of providing upkeep{1}.

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

  • noun maintenance; the act or effort of keeping something in good repair
  • verb transitive, UK to maintain (something) or keep it in good repair

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

  • noun activity involved in maintaining something in good working order
  • noun the act of sustaining life by food or providing a means of subsistence


from Wiktionary, Creative Commons Attribution/Share-Alike License

A compound word from up + keep


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