decay 1 of 2

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as in decomposition
the process by which dead organic matter separates into simpler substances the cycle by which the decay of dead plants on the forest floor provides soil and nutrients for the next generation of plants

Synonyms & Similar Words

Antonyms & Near Antonyms

decay

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verb

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Synonym Chooser

How is the word decay different from other verbs like it?

Some common synonyms of decay are decompose, putrefy, rot, and spoil. While all these words mean "to undergo destructive dissolution," decay implies a slow change from a state of soundness or perfection.

a decaying mansion

Where would decompose be a reasonable alternative to decay?

While the synonyms decompose and decay are close in meaning, decompose stresses a breaking down by chemical change and when applied to organic matter a corruption.

the strong odor of decomposing vegetation

In what contexts can putrefy take the place of decay?

In some situations, the words putrefy and decay are roughly equivalent. However, putrefy implies the rotting of animal matter and offensiveness to sight and smell.

corpses putrefying on the battlefield

How are the words rot and decompose related as synonyms of decay?

Rot is a close synonym of decompose and often connotes foulness.

fruit was left to rot in warehouses

When is spoil a more appropriate choice than decay?

The meanings of spoil and decay largely overlap; however, spoil applies chiefly to the decomposition of foods.

keep the ham from spoiling

Example Sentences

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.
Recent Examples of decay
Noun
Mount Clare has long carried the weight of economic disinvestment, systemic neglect and the legacies of redlining and urban decay. Andrew S. Jacobson, Baltimore Sun, 28 July 2025 The organization sought help from city and private agencies, banks, philanthropies and local businesses to rescue a community that had become a national symbol of urban decay. Andrew Silow-Carroll, Sun Sentinel, 18 Aug. 2025
Verb
All of this allows Lithgow and Rush to take this decaying senior rivalry to the heights, even veering into campiness as Lithgow stages a musical performance of a children’s song with Jenny as his partner. Pete Hammond, Deadline, 6 Mar. 2025 Each probe is powered by three radioisotope thermoelectric generators (RTGs) fueled by decaying plutonium-238. Andrew Paul, Popular Science, 5 Mar. 2025 See All Example Sentences for decay
Recent Examples of Synonyms for decay
Noun
  • It can also be used to describe the content itself as something likely to lead to intellectual deterioration.
    Mia Thurow, jsonline.com, 20 Aug. 2025
  • In 2025, activist groups from Mallorca wrote an open letter urging travelers not to visit the island during the peak summer season—an attempt to alleviate the worsening cost-of-living crisis, the lack of housing, and environmental deterioration.
    AFAR Media, AFAR Media, 15 Aug. 2025
Verb
  • But when confronted with some 1,500 rotting rats, the zookeepers had a change of heart.
    Nathaniel Rich, Harpers Magazine, 20 Aug. 2025
  • There are as many ways to compost as there are ways for food to rot, so Strategist writer and veteran composter Erin Schwartz spoke to six composting experts, policymakers, and home cooks for their tips on navigating the beautiful mess.
    Erin Schwartz, Curbed, 13 Aug. 2025
Verb
  • But after the Sriracha-maker callously withheld payments from Underwood, the relationship deteriorated and litigation followed.
    Kate Vitasek, Forbes.com, 14 Aug. 2025
  • But this week, the situation in Donetsk has rapidly deteriorated, with Russian forces making important advances to the north east of Dobropilia, altering control of the area Witkoff has been discussing with the Kremlin.
    Nick Paton Walsh, CNN Money, 14 Aug. 2025
Verb
  • But Whitworth faded in the final round, shooting over par for the first time in the Open, and Bradley came from behind to win after a tense duel with Beth Daniel on the back nine.
    Hank Beckman, Chicago Tribune, 22 Aug. 2025
  • For people dealing with mental health issues, often those feelings don’t fade on their own.
    Erik S. Hanley, jsonline.com, 22 Aug. 2025
Verb
  • While Season 1 was based on the Belgian series Clan, Horgan wrote a fresh trajectory for the siblings in Season 2, leading them through a new set of challenges, including, but not limited to, a con-man, a decomposing body and falling off a cliff.
    Antonia Blyth, Deadline, 23 Aug. 2025
  • The husband and wife owners of Return to Nature funeral home in Penrose were arrested after authorities found 190 decomposing bodies of adults, infants and fetuses, some stacked on top of each other, in October 2023 after neighbors reported a putrid smell coming from the building.
    Lauren Penington, Denver Post, 21 Aug. 2025
Verb
  • It's set 152 years following the turbulent events seen in Season 2, when The Foundation has greatly enhanced its influence and the Cleon clones' Galactic Empire is crumbling as Seldon and his paranormal protege Gaal Dornick (Lou Llobell) have predicted.
    Jeff Spry, Space.com, 28 Aug. 2025
  • An unreliable grid, crumbling infrastructure, and inefficient factories aren’t just economic problems.
    Jake Loosararian, Fortune, 28 Aug. 2025
Verb
  • This means banana particles can remain between teeth for an extended period, giving bacteria more time to produce acids that weaken tooth enamel.14 6.
    Lindsay Curtis, Verywell Health, 13 Aug. 2025
  • For Trump, whose political brand has long relied on projecting authenticity to his base, a sustained decline in honesty ratings could weaken his ability to roll out his agenda.
    Martha McHardy, MSNBC Newsweek, 13 Aug. 2025
Verb
  • Hers is prose in which sentences judder and disintegrate and run over each other.
    Book Marks August 28, Literary Hub, 28 Aug. 2025
  • Starship's most recent demonstration came on May 27, when the spacecraft spun out of control roughly halfway through its flight and disintegrated in a fireball.
    Eric Lagatta, USA Today, 26 Aug. 2025

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Cite this Entry

“Decay.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/decay. Accessed 4 Sep. 2025.

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