Apronym

If the acronym spells a word that suits the message (e.g. MAMA for Mothers Against Male Aggression) it is known as an apronym. Motivational speakers often use acronyms or apronyms because they are so easy to remember.

SWIFT was an apronym, an acronym that spelt a contextually meaningful word. It was meant to be fast. Indeed, SWIFT messages are literally lightning fast, travelling over wire at the speed of light, basically instantaneous.