Did you know?

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


 - definitions and thesaurus

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.



The thesaurus of synonyms and related words is fully integrated into the dictionary. Click on the thesaurus category heading under the button in an entry to see the synonyms and related words for that meaning.

verb [transitive] interest pronunciation in American English /ˈɪntrəst/
Word Forms
present tense
present participleinteresting
past tenseinterested
past participleinterested
  1. to make someone want to know about or take part in something

    Oceanography has always interested me.

    interest someone in something:

    We were hoping to interest the buyer in our new line of merchandise.

    it may/might interest you to know/hear/learn etc. (that):

    It might interest you to learn that I’ve changed my opinion on that matter.


… a teaching method in which groups of children learn independently using a computer linked to the internet

BuzzWord Article

Open Dictionary


a derogatory word used for referring to people in the banking and investment industry who are thought of as taking serious risks in order to increase their own earnings …

add a word


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