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Synonyms

flu

American  
[floo] / flu /

noun

  1. influenza.

  2. a specific variety of influenza, usually named for its point of dissemination or its animal vector.

    Hong Kong flu; swine flu.


flu British  
/ fluː /

noun

  1. short for influenza

  2. any of various viral infections, esp a respiratory or intestinal infection

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

flu Scientific  
/ flo̅o̅ /
  1. See influenza


Etymology

Origin of flu

First recorded in 1830–40; shortened form

Compare meaning

How does flu compare to similar and commonly confused words? Explore the most common comparisons:

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

"We're not talking about flu or Covid, where the virus designs itself to be spread through coughing and sneezing," he said.

From BBC

For many, Norris became less a traditional Hollywood star and more a cultural punchline — the subject of viral jokes like, “The flu gets a Chuck Norris shot every year.”

From MarketWatch

For many, Norris became less a traditional Hollywood star and more a cultural punchline — the subject of viral jokes like, “The flu gets a Chuck Norris shot every year.”

From MarketWatch

And: “The flu gets a Chuck Norris shot every year.”

From The Wall Street Journal

"It is certainly not as infective as say flu or COVID-19, and requires often fairly prolonged close contact before transmission takes place," said Andrew Lee, Professor of Public Health at the University of Sheffield.

From Barron's