Definition of uncertainty in English:

uncertainty

Line breaks: un|cer¦tain¦ty
Pronunciation: /ʌnˈsəːt(ə)nti
 
, -tɪnti/

noun (plural uncertainties)

[mass noun]

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Word of the day astrogation
Pronunciation: ˌastrə(ʊ)ˈgeɪʃ(ə)n
noun
(in science fiction) navigation in outer space