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viable

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adjective British 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.

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viability

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

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

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