Thesaurus.com
Dictionary.com
Definitions

flu

[floo] / flu /














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.

It's why Covid and winter flu vaccines need to be regularly updated.

From BBC • Jun. 4, 2026

According to a press release from Sherrill's office, detainees have complained of undrinkable water, a lack of medical attention, and the spread of the flu and Covid-19 within the facility.

From Barron's • Jun. 2, 2026

A minor injury, a serious infection, or even the flu can send the body down very different paths.

From Science Daily • Jun. 1, 2026

On average, Ebola is about 50% fatal, which is far more deadly than flu or COVID-19.

From Salon • May 30, 2026

He showed me a face mask in his backpack “I’m just glad it’s not cold and flu season,” he whispered, “or I’d have to wear it. I’m just carrying it for security.”

From "Liar, Liar" by Gary Paulsen




Vocabulary.com logo
by dictionary.com

Look it up. Learn it forever.

Remember "flu" for good with VocabTrainer. Expand your vocabulary effortlessly with personalized learning tools that adapt to your goals.

Take me to Vocabulary.com