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.

noun [plural] biology  /ˌprəʊbaɪˈɒtɪks/
  1. microorganisms (=very small living things) that are believed to make you more healthy if you eat them

    Probiotics may decrease the incidence of respiratory tract infections.

    Synonyms and related words for this sense of probiotics

derived word


 probiotics pronunciation in British English  adjective

Some probiotic health drinks do not have the healthy bacteria claimed on the label.

Synonyms and related words for this sense of probiotics


web content which is specifically intended to make Facebook users click the 'Like' button associated with it

BuzzWord Article

Open Dictionary


the possibility of Greece leaving the Eurozone …

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