A No. 1

English

Adjective

A No. 1 (not comparable)

1. (US, colloquial) First class, superior.

References

• Lesley Brown, editor-in-chief, William R. Trumble and Angus Stevenson, editors (2002), “A No. 1”, in The Shorter Oxford English Dictionary on Historical Principles, 5th edition, Oxford, New York, N.Y.: Oxford University Press, →ISBN, page 1.