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
Symptoms of the disease vary but often include fever, chills, swollen lymph nodes and respiratory symptoms similar to a cold or the flu.
—
Lauren Penington, The Denver Post, 3 Nov. 2024
For the flu and COVID, those 65 or older, pregnant or immunocompromised people or people with conditions such as asthma, diabetes, heart disease or obesity are most at risk.
—Caelyn Pender, The Mercury News, 2 Nov. 2024
Soothing Spices Spices that are on the sweeter side may be best for flu support.
—Cristina Mutchler, Verywell Health, 30 Oct. 2024
Some previous flu infections in pigs have allowed influenza viruses to change rapidly and develop new capabilities.
—Jamie Gumbrecht, CNN, 30 Oct. 2024
See all Example Sentences for flu 
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Lauren Penington, The Denver Post, 3 Nov. 2024
For the flu and COVID, those 65 or older, pregnant or immunocompromised people or people with conditions such as asthma, diabetes, heart disease or obesity are most at risk.
—Caelyn Pender, The Mercury News, 2 Nov. 2024
Soothing Spices Spices that are on the sweeter side may be best for flu support.
—Cristina Mutchler, Verywell Health, 30 Oct. 2024
Some previous flu infections in pigs have allowed influenza viruses to change rapidly and develop new capabilities.
—Jamie Gumbrecht, CNN, 30 Oct. 2024
See all Example Sentences for flu
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Dictionary Entries Near flu
Cite this Entry
“Flu.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/flu. Accessed 23 Nov. 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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