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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 entries. Click on the T button in an entry to review the synonyms and related words for that meaning.more
No one has challenged the assumptions that are made in the report.
This decision is likely to be challenged by the oil companies.
They're not likely to challenge us on any of the details.
We challenged the company to prove that its system was safe.
This is the British English definition of challenge. View American English definition of challenge.
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