A 1

Variant of A one

A one definition

A· one (ā′ wun′)

Informal first-class; first-rate; superior
also A 1 or A number 1

Etymology: orig. a designation of first-class ships, as in Lloyd's Register: A indicating the excellent condition of the hull, 1 that of the equipment

Webster's New World College Dictionary Copyright © 2009 by Wiley Publishing, Inc., Cleveland, Ohio.
Used by arrangement with John Wiley & Sons, Inc.

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