abecedary
noun
Plural: abecedaries, abecedaria, abecedariums
1. The alphabet, a list of all characters for teaching purposes; abecedarium.
2. A person who teaches or learns the alphabet; abecedarian.
3. Figuratively, a handbook presenting the basics of some art, science, or another discipline; primer; syllabary.
Examples:
—What does the secret scripture say?— Bruno wondered about the black drawing.
—Huhh... I wish I knew. But I don't think it's writing. Not in the sense of letters of an abecedary or signary. Most likely, we are looking at pictograms. (Context: Dr∙ Barton and his aides are trying to interpret a mysterious sign that appeared on a walled-off door of a haunted house's secret room. Source: J∙ Okram - The Mystery of the Rammed Key.)
adjective
Ordered by alphabet; alphabetical.