A-1

A-one

also A-1 (ā′wŭn′)adj. Informal First-class; excellent.

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

A one

or A 1

(ˈeɪ ˈwʌn)
adj. 1. first-class; excellent. 2. (of a ship) maintained in first-class condition. [1830–40]

Thesaurus

A-one

also A-1
adjectiveInformal. Exceptionally good of its kind:ace, banner, blue-ribbon, brag, capital, champion, excellent, fine, first-class, first-rate, prime, quality, splendid, superb, superior, terrific, tiptop, top.Informal: bully, dandy, great, swell, topflight, topnotch.Slang: boss.Chiefly British: tophole.

Translations

A-1

A1

Of the very highest caliber, standard, or quality. That was a positively A1 performance last night.

A-1

and A number 1 mod. of the highest rating. This steak is really A-1!

A-1

The best quality. The term originated in the 1775 edition of Lloyd’s Register of British and Foreign Shipping, in which the state of a ship’s hull was designated by a letter grade and the condition of the anchor, cables, and so forth by a number grade. This insurance rating was soon transferred to numerous other areas and has been a cliché since the late nineteenth century.

Acronym

Definition

A-1➣Alpha-1 Red Right Hand (gaming)

A-1➣Douglas Skyraider Attack Bomber (WW II, Korea, Vietnam)