flu
noun [ U ] uk/fluː/ us/fluː/ (formal influenza)
B1 流行性感冒，流感
a common infectious illness that causes fever and headache
a flu virus 流感病毒
to catch/get/have (the) flu 患／染／得流感
- More examples
- She's very hot and shivery, so I think she must have flu.
- There are lots of people off school this week with flu.