May 14, 2026 · The meaning of ILLNESS is sickness. How to use illness in a sentence.

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

A to Z list of common illnesses and conditions including their symptoms, causes and treatments.

In humans, disease is often used more broadly to refer to any condition that causes or can cause pain, dysfunction, distress, social problems, or death to the person affected, or similar problems for those …

Dec 12, 2025 · Clarify the definition of illness, differentiating it from disease and sickness. Explore the complex causes and the subjective nature of poor health.

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.

WebMD Symptom Checker is designed with a body map to help you understand what your medical symptoms could mean, and provide you with the trusted information you need to help make informed …

1 day ago · NASCAR driver Kyle Busch won't race in the Coca-Cola 600 as he deals with a "severe" illness. Here's what we know.

Illness is a state of poor health or sickness, as in I’ve had to miss a lot of work due to illness. The word illness is also commonly used to refer to a disease or instance of sickness.

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