A-one

A-one also A-1 (wn)

adj. Informal

First-class; excellent.

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[From classification for ships in The Lloyd's Register of Shipping.]

Thesaurus

Adj.

1.

A-one - of the highest quality; "an ace reporter"; "a crack shot"; "a first-rate golfer"; "a super party"; "played top-notch tennis"; "an athlete in tiptop condition"; "she is absolutely tops" ace, crack, first-rate, super, tiptop, top-notch, topnotch, tops colloquialism - a colloquial expression; characteristic of spoken or written communication that seeks to imitate informal speech superior - of high or superior quality or performance; "superior wisdom derived from experience"; "superior math students"