Definition of sustentationnext
1
as in maintenance
the act or activity of keeping something in an existing and usually satisfactory condition argues that a new toll is needed to pay for the long-term sustentation of the city's bridges

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2
as in preservation
the careful maintaining and protection of something valuable especially in its natural or original state the all-important sustentation of Mount Vernon, Monticello, and other national treasures

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Example Sentences

Recent Examples of Synonyms for sustentation
Noun
  • The Civil Aeronautics Board attributed the accident to inadequate maintenance that contributed to the engine failure and to the captain’s handling of the aircraft after power was lost.
    Landon Mion, FOXNews.com, 22 July 2026
  • That said, keeping bouclé looking fresh is less about deep cleaning and more about staying on top of regular maintenance.
    Ryan Brennan, Miami Herald, 22 July 2026
Noun
  • Passed in 1979, the current plan has been lapped not only by Boise’s land-use laws, but also by construction materials, preservation practices and architecture itself.
    Mark Dee July 24, Idaho Statesman, 24 July 2026
  • Congress is moving to expand a land preservation tax incentive that has spent nearly a decade under IRS scrutiny.
    Hayley Cuccinello, CNBC, 23 July 2026
Noun
  • There are solutions for age verification that are both accurate and privacy preserving.
    Annie Chestnut Tutor, Boston Herald, 18 Aug. 2025
Noun
  • That is close to the conclusion Catherine Macdonald, the director of the shark research and conservation program at the University of Miami, has reached after years in the middle of this fight.
    Kate Waxman, Sun Sentinel, 19 July 2026
  • Missouri farmers have implemented more than 295,000 conservation practices since its inception in 1984, which the Department of Natural Resources says stopped more than 194 million tons of soil from erosion.
    Jack Harvel, Kansas City Star, 18 July 2026
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Cite this Entry

“Sustentation.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/sustentation. Accessed 28 Jul. 2026.

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