uncertainties

from The Collaborative International Dictionary of English v.0.48

Uncertainty \Un*cer"tain*ty\, n.; pl. {Uncertainties}.
   [1913 Webster]
   1. The quality or state of being uncertain.
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   2. That which is uncertain; something unknown.
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            Our shepherd's case is every man's case that quits a
            moral certainty for an uncertainty.   --L'Estrange.
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