Did you know?

Click any word in a definition or example to find the entry for that word

poison

 - definition
 
Close

What are red words?

90% of the time, speakers of English use just 7,500 words in speech and writing. These words appear in red, and are graded with stars. One-star words are frequent, two-star words are more frequent, and three-star words are the most frequent.

Close

Thesaurus

The thesaurus of synonyms and related words is fully integrated into the dictionary entries. Click on the T button in an entry to review the synonyms and related words for that meaning.

more
verb [transitive] British English pronunciation: poison /ˈpɔɪz(ə)n/ 
Word Forms
Close
present tense
I/you/we/theypoison
he/she/itpoisons
present participlepoisoning
past tensepoisoned
past participlepoisoned
  1. 2
    to create pollution that damages part of the environment

    Waste from the factories is poisoning the water supply.

  2. 3
    to have a bad influence on something

    The decision had poisoned relations between Britain and France.

    poison someone's mind:

    Do you believe that television is poisoning the minds of our children?

Word of the Day

disciple

someone who admires a famous person such as a political or religious leader and is influenced by...

Blog

A must for anyone with an interest in the changing face of language. The Macmillan Dictionary blog explores English as it is spoken around the world today.

global English and language change from our blog