Did you know?

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

callback - 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.



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] computing callback pronunciation in American English /ˈkɔlˌbæk/
  1. a system in which a remote computer calls back the computer that has just called its number when trying to connect to the Internet, so that only the correct person can use the Internet

Open Dictionary


an afternoon full of crafts

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