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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.

She is surely on course to break her major duck sometime soon and in California last Sunday it was only the brilliance of a dominant world number one that bettered the British star.

From BBC • Jun. 8, 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

"The number one thing people ask us is, 'Where's the sea?'" laughs Isla.

From BBC • Jun. 5, 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

"You did exactly the right thing, you puny-brained puppy. You brought my number one nemesis, Duke, to me and..."

From "Dog Squad" by Chris Grabenstein




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