Did you know?

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

concentration - definition and synonyms

 
 
 
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. Click on the thesaurus category heading under the button in an entry to see the synonyms and related words for that meaning.

more
noun concentration pronunciation in American English /ˌkɑnsənˈtreɪʃ(ə)n/
Word Forms
Close
singularconcentration
pluralconcentrations
  1. 1
    [uncountable] the process of giving all your attention to something
    It took all his concentration to stay awake.
    lose concentration: She lost concentration for a moment and slipped.
    a lapse of concentration (=a short period when you do not concentrate): He had a little lapse of concentration and lost the game.
    Synonyms and related words
  2. 2
    [countable/uncountable] a large number of people or things in one area or a large amount of a particular thing
    large concentrations of Christians in this part of the city
  3. 3
    [countable/uncountable] chemistry the amount of a substance that is present in something
    An investigation found high concentrations of cancer-causing chemicals on the property.
  4. 4
    American a major at a college or university
    Synonyms and related words

JOMO

… a feeling of pleasure you get from spending time doing what you want and not worrying about what other people are doing or saying

BuzzWord Article

Word of the Day

animated

lively or active

Open Dictionary

brain fade

a temporary inability to think clearly or remember information

add a word

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