sickness Pronunciation: /ˈsɪknəs; ˈsɪknɪs/Translate sickness | into French | into German | into Italian Spanish translation of sicknessn 1 c (disease) (liter) enfermedad (f) 2 u (nausea) náuseas (fpl); (vomiting) vómitos (mpl)sickness in other Oxford dictionaries Definition of sickness in the British & World English dictionary Definition of sickness in the US English dictionary