illness

noun

1. (countable)An instance (episode) of a disease or poor health.

   “Her grandmother had passed away after a long illness.”

   “suffer form a severe illness”

   “a mild illness”

   “This further exacerbated the diagnostic challenge posed by undifferentiated febrile illness during a “twindemic” of both COVID-19 and dengue, as both illnesses could potentially present with febrile syndromes.”

2. (uncountable)A state of bad health or disease.

   “Many working days this year have been lost through illness.”

   “Illness is a wholistic reality, just as health is wholistic, and healing is the process of moving from illness to health.”