The word acronym refers to both cases (pronounced as a word, and as a set of letters). https://en.wikipedia.org/wiki/Acronym#Nomenclature https://en.wikipedia.

The word acronym refers to both cases (pronounced as a word, and as a set of letters). https://en.wikipedia.org/wiki/Acronym#Nomenclature https://en.wikipedia.org/wiki/Acronym#Nomenclature