1. Definition: 1. an acute but unspecific feeling of anxiety; usually reserved for philosophical anxiety about the world or about personal freedom

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1. Definition: 1. noticeable heterogeneity; "a diversity of possibilities"; "the range and variety of his work is amazing"

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1. Definition: 1. an activity that varies from a norm or standard; "any variation in his routine was immediately reported"

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1. Definition: 1. being unsettled or in doubt or dependent on chance; "the uncertainty of the outcome"; "the precariousness of his income"

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