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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.

noun
  1. From our crowdsourced Open Dictionary
    something that you don't know you don't know

    Helping your team turn unknown unknowns into known unknowns is, while much harder, probably one of the best things you can do.

    Submitted from United Kingdom on 09/07/2014
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crowdbirthing

giving birth to a baby in the presence of a large number of close relatives and/or friends

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presbyopia

a condition when a person cannot see clearly objects that are close; long sightedness

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