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
Inactivated whole-virus flu vaccines are still used in some other countries.
—
Meg Tirrell, CNN Money, 1 May 2025
This process is typical for new drugs, but has not been part of the process for seasonal updates to vaccines like the flu shot.
—Sean Conlon,brian Evans, CNBC, 30 Apr. 2025
But who could obtain such a note within hours of waking up with the flu or a back spasm?
—E. Tammy Kim, New Yorker, 29 Apr. 2025
Honey as a Cough Suppressant Honey is often said to be an easy way to ease common cold, flu, or allergy symptoms.
—Daniel More, Verywell Health, 29 Apr. 2025
See All Example Sentences for flu
Examples are automatically compiled from online sources to
show current usage.
Read More
Opinions expressed in the examples do not represent those of Merriam-Webster or its editors.
Send us feedback.
Meg Tirrell, CNN Money, 1 May 2025
This process is typical for new drugs, but has not been part of the process for seasonal updates to vaccines like the flu shot.
—Sean Conlon,brian Evans, CNBC, 30 Apr. 2025
But who could obtain such a note within hours of waking up with the flu or a back spasm?
—E. Tammy Kim, New Yorker, 29 Apr. 2025
Honey as a Cough Suppressant Honey is often said to be an easy way to ease common cold, flu, or allergy symptoms.
—Daniel More, Verywell Health, 29 Apr. 2025
See All Example Sentences for flu
Cite this Entry
“Flu.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/flu. Accessed 10 May. 2025.
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
Love words? Need even more definitions?
Merriam-Webster unabridged
Share