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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.

It was a welcome return to form for the British number one, who had not won a match since early March and missed several tournaments because of a viral illness.

From BBC • Jun. 25, 2026

The model was painted blue with the number one on its side, and Christopher would go on to name him Thomas.

From BBC • Jun. 24, 2026

“Having a capital sponsor like this, with the ability to navigate and get us to the right spot quicker so we can help our clients quicker, was probably the number one driver.”

From The Wall Street Journal • Jun. 23, 2026

Growth, putting more money in pockets, will have to remain the government's number one priority.

From BBC • Jun. 23, 2026

“Do you have Action Comics number one? It’s basically Superman’s first comic.”

From "Millionaires for the Month" by Stacey McAnulty




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