a number one

a num·ber one
A a


    • US Pronunciation
    • US IPA
    • [ey nuhm-ber wuhn]
    • /eɪ ˈnʌm bər wʌn/
    • US Pronunciation
    • US IPA
    • [ey nuhm-ber wuhn]
    • /eɪ ˈnʌm bər wʌn/

Definitions of a number one words

  • adjective a number one noting a vessel regarded by a shipping-classification society as being equipped to the highest standard and with equipment maintained in first-class condition. 1
  • adjective a number one Also, A number one. Informal. first-class; excellent; superior: The meals there are A one. 1

Information block about the term

Origin of a number one

First appearance:

before 1830
One of the 36% newest English words
First recorded in 1830-40

Historical Comparancy

Parts of speech for A number one


a number one popularity

A pretty common term. Usually people know it’s meaning, but prefer to use a more spread out synonym. About 54% of English native speakers know the meaning and use word.
According to our data about 52% of words is more used. This is a rare but used term. It occurs in the pages of specialized literature and in the speech of educated people.

a number one usage trend in Literature

This diagram is provided by Google Ngram Viewer

See also

Matching words

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