1
2
: any of several virus diseases marked especially by respiratory or intestinal symptoms
Examples of flu in a Sentence
He came down with a bad bout of the flu.
Recent Examples on the Web
And pregnant women appear increasingly reluctant to get the kind of immunizations that can protect both themselves and their infants from things like the flu and COVID.
—
Lisa Jarvis, The Mercury News, 16 Oct. 2024
Not to mention, enrollees in this program would lose access to free vaccines for things like shingles, RSV, and the flu.
—Katie Camero, SELF, 14 Oct. 2024
The new mandate was put into effect to limit the spread of the flu and other viruses during the late fall to early spring flu season, with some counties opting to end the requirement in March and others in April of 2025.
—Kenneth Schrupp | The Center Square, Washington Examiner - Political News and Conservative Analysis About Congress, the President, and the Federal Government, 12 Oct. 2024
Traditionally, flu vaccines contain inactivated viruses that are grown in hens’ eggs.
—Chris Baraniuk, WIRED, 3 Oct. 2024
See all Example Sentences for flu 
Lisa Jarvis, The Mercury News, 16 Oct. 2024
Not to mention, enrollees in this program would lose access to free vaccines for things like shingles, RSV, and the flu.
—Katie Camero, SELF, 14 Oct. 2024
The new mandate was put into effect to limit the spread of the flu and other viruses during the late fall to early spring flu season, with some counties opting to end the requirement in March and others in April of 2025.
—Kenneth Schrupp | The Center Square, Washington Examiner - Political News and Conservative Analysis About Congress, the President, and the Federal Government, 12 Oct. 2024
Traditionally, flu vaccines contain inactivated viruses that are grown in hens’ eggs.
—Chris Baraniuk, WIRED, 3 Oct. 2024
See all Example Sentences for flu
These examples are programmatically compiled from various online sources to illustrate current usage of the word 'flu.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.
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Cite this Entry
“Flu.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/flu. Accessed 22 Oct. 2024.
Copy CitationKids Definition
flu
noun2
: any of several virus diseases that are something like a cold
flu-like
adjective
ˈflü-ˌlīk
Medical Definition
flu
noun1
2
: any of several chiefly viral illnesses marked especially by respiratory or gastrointestinal symptoms see intestinal flu
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