Word.ws English Dictionary

Synonyms of poison

9 similar words

Another word for poison is pollute. Other synonyms of poison are contaminate.

Synonyms and similar words for poison

nounA substance that is harmful or lethal to a living organism when ingested.

  • atterMoral corruption or corruptness; noxious or corrupt influence, poison to the soul, evil, anger, envy, hatred...
  • baneChiefly in the names of poisonous plants or substances: a poison.
  • contaminantThat which contaminates; an impurity; foreign matter.
  • pollutantA foreign substance that makes something dirty, or impure, especially waste from human activities.
  • toxinA toxic substance, specifically a poison produced by the biological processes of organisms.

verbTo pollute; to cause to become poisonous.

  • contaminateTo make something dangerous or toxic by introducing impurities or foreign matter.
  • polluteTo make something harmful, especially by the addition of some unwanted product.
  • taint

verbTo cause to become much worse.

Meaning of poison

  1. noun A substance that is harmful or lethal to a living organism when ingested.
  2. noun Anything harmful to a person or thing.
  3. noun An alcoholic drink. (Mainly in the phrases "name your poison" and "what's your poison?").

Full definition of poison

poison in other languages

Questions about synonyms of poison

What is another word for poison?
Poison has 9 synonyms on Word.ws, such as pollute and contaminate.
What does poison mean?
Poison means a substance that is harmful or lethal to a living organism when ingested.

Source and license

Adapted from Wiktionary: poison (page history and authors) and the entries of the words listed. Text available under the Creative Commons Attribution-ShareAlike 4.0 license. Word.ws grouped the synonyms and antonyms by meaning and added links. Wiktionary data of 2026-09-02.

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Cite this page: “Synonyms of poison.” Word.ws, https://word.ws/synonyms/poison. Based on Wiktionary, CC BY-SA 4.0.