flu

noun
\ˈflü \

Definition of flu 

1 : influenza

2 : any of several virus diseases marked especially by respiratory or intestinal symptoms

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Other Words from flu

flu-like \ ˈflü-​ˌlīk \ adjective

Examples of flu in a Sentence

He came down with a bad bout of the flu.

Recent Examples on the Web

Reid gets vamped some time just before the game starts, during the 1918 flu epidemic, and almost immediately murders his sister in a fit of paranormal thirst. Steven Strom, Ars Technica, "Vampyr review: Dead in the daylight," 6 June 2018 The news was full of reports about a deadly flu epidemic. Alexa Tsoulis-reay, The Cut, "I Was Convinced I Might Kill My Child," 31 May 2018 The Markit report attributed the latest weakness to the number of public holidays, after bad weather, strikes and a flu epidemic weighed at the start of the year. Jana Randow, Bloomberg.com, "Global Economic Rebound Yet to Show as Manufacturing Weakens," 23 May 2018 Commonly, once infected, a person develops flu-like symptoms of fever, headaches, muscle pain, vomiting and sore throat. Susan Scutti, CNN, "What you need to know about lethal Nipah virus," 23 May 2018 The 1918 flu epidemic wiped out so many thousands of people that a handful of black nurses were called to assist. Alexis Clark, Smithsonian, "The Army’s First Black Nurses Were Relegated to Caring for Nazi Prisoners of War," 15 May 2018 No long ago, Kelley got the flu and had to take a week off — for the first time in 34 years. Margeaux Sippell, BostonGlobe.com, "This shop is so small the customers have to stay outside," 7 Apr. 2018 Trainer's Room Mets: CF Brandon Nimmo was scratched after being up most of the night with flu-like symptoms. Ronald Blum, courant.com, "Dejong's 1st Multihomer Game Leads Cards Over Mets 5-1," 1 Apr. 2018 In the fall of 2016, Williams learned all employees had to get a flu shot by late October. Bruce Vielmetti, Milwaukee Journal Sentinel, "Feds sue Ozaukee County for requiring nursing home assistant to get flu shot over her religious objections," 6 Mar. 2018

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'flu.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of flu

1839, in the meaning defined at sense 1

History and Etymology for flu

by shortening

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Dictionary Entries near flu

FLSA

flt

fltg

flu

fluate

fluavil

flub

Statistics for flu

Last Updated

10 Nov 2018

Look-up Popularity

Time Traveler for flu

The first known use of flu was in 1839

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More Definitions for flu

flu

noun

English Language Learners Definition of flu

: a common disease that is caused by a virus and that causes fever, weakness, body aches, and breathing problems

flu

noun
\ˈflü \

Kids Definition of flu

1 : influenza

2 : any of several virus diseases something like a cold

flu

noun
\ˈflü \

Medical Definition of flu 

1 : influenza

2 : any of several chiefly viral illnesses marked especially by respiratory or gastrointestinal symptoms — see intestinal flu

Other Words from flu

flu-like \ -​ˌlīk \ also flulike adjective
flu-like symptoms

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Comments on flu

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