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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.

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interjection boy pronunciation in American English /bɔɪ/
  1. used for expressing a strong reaction, especially admiration or excitement
    Oh boy! Wait till we tell Ann the news.
    Boy, was she mad!

free-from

used to describe foods which don't contain ingredients such as wheat, dairy products etc …

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Open Dictionary

red market

the buying and selling of human organs

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