B1nounhealth
US/fluː/
UK/fluː/
an illness like a bad cold, with fever, aches and tiredness, caused by a virus
In context
I stayed in bed all week because I had the flu.
Many people get a flu shot before winter starts.
The flu spreads quickly in schools during the cold months.
Words that go with flu
verb + noun
- catch the fluI caught the flu from my brother.
- have the fluShe has the flu and cannot come to work.
noun + noun
- flu shotThe nurse gave me a flu shot.
- flu seasonHospitals are busy during flu season.
- flu symptomsFever and aches are common flu symptoms.
- flu virusThe flu virus changes every year.
Common mistakes
Incorrect:
I have a flu.Correct: I have the flu.