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Webster 1913 Edition

Noun.

[Gr.

ἄκροσ

extreme + [GREEK] sound.]

The use of a picture symbol of an object to represent phonetically the initial sound of the name of the object.

acrophony ‎(plural acrophonies)

Naming letters in an alphabetic writing system using words whose initial sounds are represented by the respective letters.

naming of letters so their names begin with the letter itself