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Definition of decaynext
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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
Washing fruit in advance is not advisable; pre-washing accelerates decay. Anne Wolf, Martha Stewart, 13 May 2026 According to the brothers, the home — despite appearing quite elegant, with its portico, white balustrade, five bedrooms, carved fireplaces and a music room — has long been in decay and would cost millions of dollars to restore. Eric Adler may 12, Kansas City Star, 12 May 2026
Verb
Indoor plants won’t always attract earwigs, but decaying plant matter or mold in the soil, issues that are common with over watering, will. Dan Simms, USA Today, 15 May 2026 The transformation of decaying riads into hotels has often meant aiding the restoration of Marrakech’s UNESCO heritage site, as well as promoting local crafts and artisan trades. Rebecca Ann Hughes, Forbes.com, 15 May 2026 See All Example Sentences for decay
Recent Examples of Synonyms for decay
Noun
  • The following month, the Veterans Administration filed a report stating that the Nautilus Veterans Hospital was in a severe state of deterioration, mostly because of the dampness from the sea air, which caused the concrete’s steel rods to rust and give way.
    Miami Herald Archives, Miami Herald, 13 May 2026
  • The switch in alliances has coincided with the rapid deterioration of the security situation in Mali, Burkina Faso, and Niger.
    Brady Knox, The Washington Examiner, 10 May 2026
Noun
  • Excessive fly activity indicates decomposition is already underway, at which point the fruit's condition is as much the concern as the flies themselves.
    Anne Wolf, Martha Stewart, 13 May 2026
  • Brian Eckenrode, a retired FBI forensic scientist and expert in human decomposition, joined them in 2021.
    Richard Winton, Los Angeles Times, 10 May 2026
Verb
  • Still, others were not convinced this method was effective long term, as peonies can be prone to rotting roots.
    Kait Hanson, Southern Living, 15 May 2026
  • Young lettuce, kale, or broccoli plants should be planted so the root ball is level with the soil surface or just below; burying the stem or the crown too deeply can lead to rotting.
    Nadia Hassani, The Spruce, 15 May 2026
Verb
  • Over the course of the next hour, the weather deteriorated rapidly.
    Sacbee.com, Sacbee.com, 14 May 2026
  • The warning underscores the deteriorating situation in Gaza.
    Tal Shalev, CNN Money, 14 May 2026
Verb
  • In terms of where to beach, wide stretches of sand in Beach Haven remain some of the Jersey Shore’s most desirable, drawing surfers at sunrise, families hauling coolers and striped umbrellas by midday, and sunset walkers lingering until the sky fades pink over the dunes.
    Jessica Chapel, Condé Nast Traveler, 15 May 2026
  • Inside, customers collect passport stamps, browse racks of worn leather and faded denim and line up for limited-edition tote bags tied to the second annual Vintage Store Day.
    Alexandra Harrell, Footwear News, 15 May 2026
Noun
  • These concerns have led to the weakening of the rupee against the dollar, sending it to record lows in recent days.
    Priyanka Salve, CNBC, 13 May 2026
  • But the weakening of that regime weakens the proxies as well.
    CBS News, CBS News, 10 May 2026
Verb
  • From a nearby dumpster there came the sweet and musty smell of decomposing seafood.
    Literary Hub, Literary Hub, 14 May 2026
  • Biodegradable waste consists of organic materials, such as food scraps, vegetable peels, paper, leaves, and agricultural residues, that can be decomposed naturally through microbial processes.
    Aman Kumar, Encyclopedia Britannica, 14 May 2026
Verb
  • A lot of the old ways and structures the industry was built around have shifted or crumbled.
    Josh Weiss, Forbes.com, 18 May 2026
  • The mounting costs of Putin’s war on Ukraine have contributed to the nation’s shift, as Russians grapple with higher inflation, more taxes, crumbling infrastructure, tighter censorship, and myriad new restrictions.
    Jason Ma, Fortune, 16 May 2026

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Cite this Entry

“Decay.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/decay. Accessed 20 May. 2026.

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