No they are not the same thing, and nor are they meant to be interchangeable.
From
Dictionary.com:
Acronyms:
a word formed from the initial letters or groups of letters of words in a set phrase or series of words, as
Wac from
Women's Army Corps, OPEC from
Organization of Petroleum Exporting Countries, or
loran from
long-range navigation.Abbreviations:
a shortened or contracted form of a word or phrase, used to represent the whole, as
Dr. for
Doctor, U.S. for
United States, lb. for
pound.Abbreviations are used to shorten the writings of words, not to shorten their pronunciation. Thus, it really grinds my gears when I hear people pronouncing words such as BBQ as
b-b-q. It's barbecue for crying out load. Others like inc. is shorten for incorporated, so next time don't pronounce it as Monsters
Inc.
McD? No, its McDonalds. And what's up with
bro? I hate the usage of the word here in Malaysia to begin with, but since I'm at it, it's pronounced brother.
After all, you don't pronounce Mohd. as
mohd right? Or
s-d-n b-h-d?
A-b-d? No, its Mohammad, sendirian berhad, and Abdul.
Don't be lazy. Open your mouth a bit more will you please.
Thank you.