Did you know?

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

American pronunciation of 


view main entry for psychoactive adjective  /ˌsaɪkoʊˈæktɪv/
British English pronunciation: psychoactive
Click to listen to the pronunciation of psychoactive

This is the American English pronunciation of psychoactive.

View British English pronunciation of psychoactive.


deep learning

a form of machine learning which incorporates the use of neural networks

BuzzWord Article

Open Dictionary

snap election

a general election … that is called earlier than expected

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