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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Recent Examples of Synonyms for sustentation
Noun
  • These robots could significantly improve inspection and maintenance operations by reaching areas that are difficult, dangerous, or expensive for humans to access.
    Atharva Gosavi, Interesting Engineering, 1 June 2026
  • Officials say the body was found on May 21 by a maintenance worker who was checking on a possible water leak in the building on the 3300 block of Cobb Parkway SE.
    Dan Raby, CBS News, 1 June 2026
Noun
  • The answers separate skillcations that support cultural preservation from those that merely repackage it.
    Hanna Wickes, Kansas City Star, 29 May 2026
  • Environmental group praises acquisition Environmental advocates hailed the acquisition as a milestone for Hill Country preservation.
    Doug Myers, CBS News, 28 May 2026
Noun
  • There are solutions for age verification that are both accurate and privacy preserving.
    Annie Chestnut Tutor, Boston Herald, 18 Aug. 2025
Noun
  • While the chain has expanded to almost 200 locations, local community and conservation (the company has preserved millions of acres of land for wildlife) are at the core of not only Bass Pro but also Morris’s personal ethos.
    Arati Menon, Condé Nast Traveler, 7 June 2026
  • Visitors experienced a live butterfly encounter, connected with experts, enjoyed live entertainment, and discovered global efforts in pollinator conservation.
    CBS News Atlanta Digital Team, CBS News, 7 June 2026
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.

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Cite this Entry

“Sustentation.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/sustentation. Accessed 9 Jun. 2026.

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