Ma'anar ƙamus na kalmar "ciwo" shine yanayi ko yanayin rashin lafiya ko rashin lafiya, ko dai ta jiki ko ta hankali. Yana iya nufin wata cuta ta musamman ko cuta, ko kuma tana iya kwatanta jin rashin lafiya ko rashin jin daɗi. Hakanan za'a iya amfani da kalmar don bayyana yanayin da ba lallai ba ne ya shafi lafiyar jiki, kamar damuwa ko damuwa. Gabaɗaya, rashin lafiya yana nufin mummunan yanayin jin daɗin rayuwa, kuma yana iya haifar da shi ta hanyoyi daban-daban, ciki har da rashin lafiya, rauni, damuwa, ko abubuwan muhalli.
His sickness struck him