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.
Differences between British and American English: subway
In the UK, a subway is an underground tunnel that people can walk through to get to the other side of a busy road: It's safest to use the subway to get from the car park to the museum. In the US, this is called an underpass. A subway in the US is an underground railway in a city: Take the subway to 14th Street.