Definition of illness in English:
A disease or period of sickness affecting the body or mind: he died after a long illness [mass noun]: I’ve never missed a day’s work through illness
More example sentences
- Other viral illnesses include influenza, the common cold, Lassa fever, and ebola.
- People with excess body fat have a greater risk for such illnesses as diabetes and hypertension.
- And if you do not cure that sickness, other illnesses will attack and make it weaker.