the GNU version of the Collaborative International Dictionary of English
ad. In an alphabetic manner; in the customary order of the letters.
The Century Dictionary and Cyclopedia
In an alphabetical manner or order; by the use of an alphabet; in the customary order of the letters: as, to arrange a catalogue alphabetically.
WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
ad. in alphabetical order
Word Usage
"By actual count, there are fifteen societies, ranging alphabetically from the Advocates 'Society and including in their vast membership the associations which Mr. Pepper mentioned, as well as other military and patriotic societies."