acrophony

From Ancient Greek ἄκρος (ákros, “uppermost, beginning”) + φωνή (phōnḗ, “sound”). From acro- +‎ -phony.

• (Received Pronunciation) IPA^(key): /əˈkɹɒfəni/

acrophony (countable and uncountable, plural acrophonies)

1. The naming of letters in an alphabetic writing system using words whose initial sounds are represented by the respective letters.

• acrostic