I would never wish someone ill.

Many people suffer from mental illnesses.

Folk illnesses are traditional beliefs and practices related to health and healing.

Many people suffer from terminal illnesses.

Many patients suffer from final illnesses.

There are several seroconversion illnesses that can occur after a person becomes infected with a new virus.

Foodborne illnesses can be prevented by practicing good hygiene and proper food handling.

It's an ill wind that blows no good.

I can't lie ill in my mouth, I have to speak the truth.

Ill news spreads apace.