Did you know?

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

intelligence - definition and synonyms


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.



Thesaurus diagram

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.

noun [uncountable]     intelligence pronunciation in American English
  1. 1
    the ability to understand and think about things, and to gain and use knowledge

    a person of average intelligence

    Someone of your age is expected to show more intelligence.

    Maria had spirit and intelligence as well as beauty.

  2. 2
    information collected about the secret plans and activities of a foreign government, enemy, etc.

    The satellite could also be used to gather intelligence.

    Synonyms and related words
quiz invitation
  • Facebook
  • Twitter

liquid biopsy

a medical test in which blood cells are taken from the body and examined to find out if they are healthy

BuzzWord Article

Open Dictionary


someone on a film set who takes care of plants, trees, and other various landscaping materials like rocks, gravel, sand, etc.

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
Macmillan learn live love play