Cambridge Free English Dictionary and Thesaurus Cambridge dictionaries logo
Cambridge Dictionaries online Cambridge Dictionaries online

The most popular online dictionary and thesaurus for learners of English

Welcome to Cambridge Dictionaries Online!

We have corpus-informed dictionaries for English language learners at all levels. They’re ideal for anyone preparing for Cambridge English exams and IELTS.

Explore English further with Cambridge Dictionaries Online:

  • read our blog to keep up to date with developments in the English language and essential grammar information for learners
  • stay on top of the latest vocabulary and improve your language knowledge with our weekly new words posts
  • subscribe to our Facebook and Twitter communities to get Word of the Day updates, and for alerts on any new developments to the site

Word of the Day

star

a very large ball of burning gas in space that is usually seen from the earth as a point of light in the sky at night

Word of the Day

There, their and they’re – which one should you use?
There, their and they’re – which one should you use?
by ,
April 27, 2016
by Liz Walter If you are a learner of English and you are confused about the words there, their and they’re, let me reassure you: many, many people with English as their first language share your problem! You only have to take a look at the ‘comments’ sections on the website of, for example, a popular

Read More 

trigger warning noun
trigger warning noun
May 02, 2016
a warning that a subject may trigger unpleasant emotions or memories This is not, I should stress, an argument that trigger warnings should become commonplace on campus.

Read More