Try Our Apps


Avoid these words. Seriously.

A one

[ey wuhn] /ˈeɪ ˈwʌn/
noting a vessel regarded by a shipping-classification society as being equipped to the highest standard and with equipment maintained in first-class condition.
Also, A number one. Informal. first-class; excellent; superior:
The meals there are A one.
Also, A-one, A 1, A-1.
Origin of A one
First recorded in 1830-40 Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2018.
Cite This Source
Examples from the Web for a1
Contemporary Examples
Historical Examples
  • An a1 piece of villainy was on, and they were conversing in low tones.

    Thoroughbreds W. A. Fraser
  • One instance each of A-1 and a1, and cooee and coo-e-e were retained.

  • I've got some a1 inventions here, an' I want to get 'em patented.

    The Panchronicon Harold Steele Mackaye
  • When at rest they all press upwards against the plates A and a1 respectively.

    How it Works Archibald Williams
  • Mrs. Bax, now that her true nature was revealed, proved to be a1.

    New Treasure Seekers

    E. (Edith) Nesbit
  • Why, youll be a1 material for next—if you keep your head up.

    Full-Back Foster

    Ralph Henry Barbour
  • a1, first-rate, the very best; shes a prime girl, she is; she is a1.

    The Slang Dictionary John Camden Hotten
  • But you should see his wife; she's a stunner—a1 anywhere; she is a beauty!

British Dictionary definitions for a1


in good health; physically fit
(informal) first class; excellent
(of a vessel) with hull and equipment in first-class condition
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
Cite This Source

Word of the Day

Nearby words for a1

Word Value for a1

Scrabble Words With Friends