Pronunciation coach
Flu
Sounds like
FLOO
Tap the speaker to hear the word.
Simple meaning
What does Flu mean?
An influenza illness.
Dictionary definition
A common illness caused by influenza viruses, often with fever, aches, cough, and tiredness.
Example sentences
Flu in a sentence
easy
She stayed home with the flu.
medium
Flu season can spread through schools.
hard
Flu is a health word, and medical questions should be handled by qualified professionals.
Synonyms
Words like Flu
influenzaA viral illness often called the flu.
illnessRelated word that supports the meaning of flu.
Antonyms
Opposite words
wellnessA state of being healthy.
opposite ideaA contrasting idea to flu, depending on context.
Word family
Flu word family
Base word
flu
noun
flus
More than one flu.
Related words
Explore related words
Quick practice
Try Flu
Practice 1
What does flu mean?
Flu means an influenza illness.
Practice 2
Which word is closest in meaning to flu?
Influenza is close in meaning to flu in the right context.
Practice 3
Which word is an antonym of flu?
Wellness contrasts with flu.
Practice this skill
Practice vocabulary in WordHive
Use the dictionary to understand Flu, then move into short activities matched to the skills on this page.
Learning paths
- Define the Word Hive for word meanings.
- Synonym Search for word choice.
- Context Clue Challenge for sentence clues.
- Buzz Between for homophones and listening.
- Hive Builder for roots, prefixes, and suffixes.