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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

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

Though Hong Kong has overtaken Switzerland as the number one in cross-border wealth management, rather than enter panic mode, Swiss banks seem unruffled -- feeling it bolsters the case against looming tighter banking regulations.

From Barron's • Jun. 4, 2026

We were named the number one news story in 1957.

From "March Forward, Girl" by Melba Pattillo Beals




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