Cool MateFlu vs Virus
When to use each in English, with meaning, register, and examples.
| Flu | Virus | |
|---|---|---|
| Meaning | A sickness caused by a virus, making you feel tired and have fever. | A tiny living thing that can make you sick. |
| CEFR level | A2 | A2 |
| Part of speech | noun | noun |
| Usage notes | Use 'flu' when talking about the illness caused by the influenza virus. It's appropriate in both formal and informal contexts, but avoid using it in serious medical discussions where more specific terms are needed. | Use 'virus' in medical or technical contexts. Avoid colloquial settings unless joking or referencing technology (e.g., computer virus). |
Frequently asked questions: Flu vs Virus
What's the difference between "Flu" and "Virus"?
"Flu" means: A sickness caused by a virus, making you feel tired and have fever. "Virus" means: A tiny living thing that can make you sick.
When should I use "Flu" and "Virus"?
They can all be used in everyday English.
Are "Flu" and "Virus" the same CEFR level?
"Flu" is at A2, "Virus" is at A2 on the CEFR scale.