Difference between illness and sickness

Answer 1

Sick or ill, the words are to an extent interchangeable; one can say he is sick or he is ill. Although I personally would be more concerned about ill than about sick. Ill suggests something serious like a stroke whereas sick suggest a sore throat.

And feeling sick means feeling nauseous whilst feeling ill means feeling unwell.

So overall , ill is more serious, sick is more trivial.

But non-humans tend only to be sick eg a sick cow, a sick joke, a sick economy.

The above answer is true for American English; in Britain, you'd say "ill" when you have any kind of bodily distress, but "sick" usually means stomach sickness and vomiting.

Answer 2

Illness means 1. Diseased, disorder of health. 2. Wrong moral conduct ,wickedness 3.impairment of normal physiological function affecting all or part of an organism. Sickness means 1.state of being sick or diseased, illness, malady. 2.Nausea,qualmishness So if we look at the first meaning of illness it is the same as sickness. However, regarding the second and third meaning they are totally different as you can see from the definitions above. ardictionary.com Posted by Samantha Seeboonruang