Arthur

American  

[ahr-ther] / ˈɑr θər /

noun

1. Chester Alan, 1830–86, 21st president of the U.S. 1881–85.

2. legendary king in ancient Britain: leader of the Knights of the Round Table.

3. a first name.

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Arthur British  

/ ˈɑːθə /

noun

1. a legendary king of the Britons in the sixth century _ad , who led Celtic resistance against the Saxons: possibly based on a historical figure; represented as leader of the Knights of the Round Table at Camelot

2. Chester Alan. 1830–86, 21st president of the US (1881–85)

3. informal to be in a state of confusion

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Example Sentences

Thanks to ads, you no longer just bought “flour,” you bought a brand like King Arthur Flour.

From The Wall Street Journal • Apr. 15, 2026

I loved the scene in which Arthur fires off a peeved response to a hater in his comments.

From Los Angeles Times • Apr. 9, 2026

Social Care Minister Tom Arthur said: "When a person is self-funding their care this becomes a contractual matter between the individual and their care home. However, this should be protected by consumer protection laws."

From BBC • Apr. 5, 2026

"We were all kind of scoffing, 'Arthur who writes the truck commercials is writing a drama!?' And of course then Arthur had the last laugh, because two weeks later he was famous."

From BBC • Apr. 3, 2026

Light doesn’t go in a straight line, but in a curved path around stars—an effect that the British astronomer Sir Arthur Eddington went on an expedition in 1919 to observe.

From "Zero: The Biography of a Dangerous Idea" by Charles Seife