The meaning of ILLNESS is sickness. How to use illness in a sentence.

Jan 9, 2026 · Other Viruses and Bacteria that Cause Respiratory Illness CDC tracks the severity and impact of respiratory illnesses and the spread of the germs that cause them using data …

(Definition of illness from the Cambridge Academic Content Dictionary © Cambridge University Press)

Mar 7, 2025 · Is there a difference between a disease and an illness? Technically, yes. A disease is something a physician can diagnose, and an illness is something you feel.

Definition of illness noun in Oxford Advanced Learner's Dictionary. Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more.

2 days ago · illness (countable and uncountable, plural illnesses) (countable) An instance of a disease or poor health. Her grandmother had passed away after a long illness. suffer form a …

An illness is a particular disease such as measles or pneumonia. She returned to her family home to recover from an illness.

1. An interruption, cessation, or disorder of body functions, systems, or organs. Synonym (s): illness, morbus, sickness. 2. A morbid entity characterized usually by at least two of these …

/ˈɪlnɪs/ IPA guide Other forms: illnesses Definitions of illness noun impairment of normal physiological function affecting part or all of an organism synonyms: malady, sickness, …

Illness is a state of poor health or sickness, as in I’ve had to miss a lot of work due to illness.