I was surprised to find out that there were words I have been saying my whole life that were actually acronyms. Acronyms are everywhere and most of us use them all the time but not everyone knows what they stand for, like LASER or IKEA. We have combined in this article some of the most common acronyms and we have sorted them from the easiest to the most difficult. You will find the ones at the top quite easy to guess but as you make your way to the bottom I doubt you will know what they stand for. Please tell us in comment how many did you know.