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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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adjective American English pronunciation: viable /ˈvaɪəb(ə)l/
  1. 1
    able to be done, or worth doing

    The present system is simply no longer viable.

    commercially/economically/financially viable (=capable of producing a profit):

    Hospitals plan to stop services that are not financially viable.

derived word


 American English pronunciation: viability /ˌvaɪəˈbɪləti/  noun [uncountable]

We're concerned about the viability of your business plan.

the deep web

a part of the Internet that cannot be accessed with conventional browsers or search tools, often used for illegal activity

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digital hermit

a person who avoids using modern technologies like e-mail or the Internet

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