Did you know?

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

180 - 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.

  1. From our crowdsourced Open Dictionary
    do a 180/one-eighty to completely change your mind about something; to embark on a course of action that is the opposite of your previous one

    We did a 180 and decided to outsource the childcare while my wife works 3 days a week.

    Submitted from United Kingdom on 28/03/2017
  2. From our crowdsourced Open Dictionary
    do a 180/one-eighty to turn through 180 degrees

    The people standing at the entrance did a 180 to watch me walking towards them.

    Submitted from United Kingdom on 28/03/2017

deep learning

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

BuzzWord Article

Word of the Day


meat from a young cow

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