poison 1 of 3

adjective

Definition of poisonnext
as in poisoned
containing or contaminated with a substance capable of injuring or killing a living thing the witch gave Snow White a poison apple

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poison

2 of 3

noun

ˈpȯi-zᵊn How to pronounce poison (audio)
as in toxic
a substance that by chemical action can kill or injure a living thing the only way to get rid of rats is to leave out poison

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poison

3 of 3

verb

1
as in to taint
to affect slightly with something morally bad or undesirable poisoning the minds of impressionable children with ethnic hatred

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2
as in to pollute
to make unfit for use by the addition of something harmful or undesirable exhaust fumes poisoning the air

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3
as in to degrade
to lower in character, dignity, or quality this party partisanship poisons the national debate we should be having about this urgent problem

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4
as in to turn
to cause to have often negative opinions formed without sufficient knowledge malicious rumors had poisoned many church members against the new pastor

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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 poison
Adjective
Michelle spins a long and complicated tale, but insists Teddy was wrong about the Andromedans trying to infiltrate and poison humanity. — Megan McCluskey, Time, 31 Oct. 2025 Constant procedural upheaval and backlogs are poison. — Scott White, Forbes.com, 15 Aug. 2025
Noun
The clues that Swift’s ghost is leaving for Johnson still aren’t really hitting until Johnson’s character starts feeling the effects of the literal poison being fed to her in her coffee and wine and realizes this man may be bad. — Alejandra Gularte, Vulture, 28 Sep. 2026 Trump has turned into poison for Republican candidates in competitive races and any cause that reminds people of him. — Los Angeles Times, 28 Sep. 2026
Verb
In her other case, Hogan has been accused of trying to falsify a paternity test in a custody battle with her ex-fiancé, who was not the same man who was allegedly poisoned. — Justin Muszynski, Hartford Courant, 25 Sep. 2026 Corie Walsh, 40, the Illinois mother accused of killing her 2-year-old son Barrett, entered a not guilty plea under the watchful eye of her husband, whom she is accused of attempting to poison. — Kelsie Cairns, FOXNews.com, 24 Sep. 2026 See All Example Sentences for poison
Recent Examples of Synonyms for poison
  1. poisonous
  2. toxic
  3. taint
  4. pollute
  5. degrade
  6. turn
  7. disease
  8. spoil
Adjective
  • With the throne disengaged from governance, petitions and reports from officials piled up unread, crucial state posts went unfilled, and the imperial bureaucracy splintered amid poisonous factional infighting.
    — Carl Minzner, Foreign Affairs, 5 Oct. 2026
  • With this potential even more poisonous investments in the bloated and indebted Paramount behemoth, there’s even more reason to reject it.
    — Abigail Disney, New York Daily News, 28 Sep. 2026
Definition of poisonous
Noun
  • In late May, about 50,000 people in Orange County were evacuated because, at a Garden Grove site operated by GKN Aerospace, tanks holding a volatile hazardous chemical called methyl methacrylate were at risk of exploding or leaking toxics.
    — Patt Morrison, Los Angeles Times, 15 July 2026
  • Munoz is an independent toxicologist working in collaboration with MAHA against pesticides and toxics.
    — Sandee LaMotte, CNN Money, 10 July 2026
Definition of toxic
Verb
  • That means if the sewage system backs up, the sink could be tainted.
    — David J. Neal, Miami Herald, 10 Oct. 2026
  • Hahn told the Observer in 2020 that the scandal tainted televangelism broadly.
    — Charlotte Observer, Charlotte Observer, 6 Oct. 2026
Definition of taint
Verb
  • In a world riven by democratic backsliding and polluted with AI slop, there’s something seductive about the idea of retreating to a wild, unnavigable place where no one can follow you—because you’ll be submerged up to your eyeballs.
    — Literary Hub, Literary Hub, 15 Oct. 2026
  • Throwing a piece of garbage out of the window affects every Texan, polluting water and soil and affecting wildlife.
    — Katie Standing, CBS News, 14 Oct. 2026
Definition of pollute
Verb
  • With so few ancient samples of dodo DNA surviving—and that which does exist having degraded over the centuries—the analytic and number-crunching power of AI is just what’s needed to fill in the genetic blanks.
    — Jeffrey Kluger, Time, 14 Oct. 2026
  • The partnership aims to keep the platform connected when military operations disrupt or degrade individual network links.
    — Aamir Khollam, Interesting Engineering, 14 Oct. 2026
Definition of degrade
Verb
  • He’s handcuffed to this stupid project, and swaths of people have instantly turned their back on him without knowing any of the facts.
    — Payton Turkeltaub, Variety, 13 Oct. 2026
  • By July, the side project turned into a full-time job when MLB hired Weingardt as a principal product manager to explore changes to its flagship app.
    — Jacob Feldman, Sportico.com, 13 Oct. 2026
Definition of turn
Noun
  • The first is to dramatically accelerate the pace of basic science, and the second is to accelerate curing disease and extending health span.
    — Adam Kovac, Scientific American, 14 Oct. 2026
  • DeVeydt added that costs for inpatient services and pharmacy, particularly costly specialty pharmacy drugs for cancer and rare diseases, remain elevated.
    — Annika Kim Constantino, CNBC, 13 Oct. 2026
Definition of disease
Verb
  • This story spoils the plot of the film Whalefall, now out in theaters, based on Daniel Kraus‘ novel.
    — Dessi Gomez, Deadline, 16 Oct. 2026
  • The Dodgers left-hander had just given up the lead on Bauers’ two-run homer, spoiling what had been a stellar start Wednesday night at Dodger Stadium.
    — Assistant Sports Editor, Los Angeles Times, 15 Oct. 2026
Definition of spoil

Browse Nearby Words

poising
poison
poisoned
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Cite this Entry

“Poison.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/poison. Accessed 19 Oct. 2026.

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More from Merriam-Webster on poison

Britannica.com: Encyclopedia article about poison

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