A1. An expression meaning “first-rate.” Derived from Lloyd’s “Registry of Shipping,” in which letters denote the quality of a ship’s hull, and figures that of its equipment. A vessel registered A1 is of the first class in all respects. Abbey Laird. An insolvent debtor who in former times sought the sanctuary of the precincts of Holyrood Abbey against arrest. Abbey Road. From the ancient abbey of..