1. Sick: This is the most common meaning of "ill." It refers to being unwell or suffering from a disease or ailment.
Example: "I'm feeling ill today and need to stay home from work."
2. Bad: This meaning is used to describe something negative or undesirable.
Example: "The food tasted ill."
3. Unfortunate: This meaning refers to something that is unlucky or unfortunate.
Example: "It's ill luck that you missed the bus."
4. Evil: This meaning is used to describe something morally wrong or wicked.
Example: "The villain had ill intentions."
5. Not well: This is a more formal and less common way to say "sick."
Example: "He is ill and needs medical attention."
To understand the exact meaning of "ill," you need to consider the context in which it's used.