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unknown adjective

  /ʌnˈnoʊn/ , /ʌnˈnəʊn/
  • (sometimes, _, postpositive) Not known; unidentified; not well known.
unbekannt

unknown noun

  /ʌnˈnoʊn/ , /ʌnˈnəʊn/
  • (algebra) A variable (usually x, y or z) whose value is to be found.
Unbekannte
  • A person of no identity; a nonentity.
Unbekannter
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