Encyclopedia: A1...
Encyclopedia : A : A : A1 (2 articles)
A1
A1 and A-1 are often used at the start of commercial business names so that they appear first in the telephone directory. For example, "A1 Cleaning Services" or "A1 Tool Hire". A1 means "very good" and is derived from the shipping insurers, Lloyds of London's description of a first class ship...
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