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Definitions

number one

NOUN
most important person or thing
Synonyms
Antonyms
STRONGEST


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.

Omar Artan is the number one referee from Africa.

From BBC • Jun. 9, 2026

World number one Nelly Korda won her first US Women's Open title, pipping England's Charley Hull to victory by a single shot.

From BBC • Jun. 8, 2026

A world number one in juniors, Andreeva has long been tipped for Grand Slam success.

From BBC • Jun. 6, 2026

Gold has become the number one asset in central banks reserves, thanks to a relentless rise in prices and continued buying from emerging market central banks, the head of next generation research says.

From The Wall Street Journal • Jun. 4, 2026

Neither of them seemed to understand what they were saying when they talked about being number one and number two—that it would make me number three.

From "How It Went Down" by Kekla Magoon




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