In Engpsh, "illness" or "disease" can be used to refer to a medical condition that causes symptoms or discomfort. Some other words that might be used to describe an illness include "ailment," "malady," "affpction," or "disorder." The specific term used to describe an illness will depend on the nature of the condition and the context in which it is being discussed. For example, someone might refer to a common cold as an illness, while a more serious condition pke cancer might be referred to as a disease.