SA can be many things. (249 to be more accurate)
http://acronyms.thefreedictionary.com/SA
Here are a few common ones.
South America
San Antonio
In the US in the 1930's it meant Sex Appeal, as nice girls did SAY the S word.
Chat with our AI personalities
The initials a.m. stand for ante meridian, Latin for "before noon." The initials p.m. stand for post meridian, Latin for "after noon."
There are some different ideas on the initials WRT stands for. However, most of people agree with the idea that the meaning of the initials WRT stands for With Regard To.
The initials apr stands for annual percentage rate. Used when borrowing money , basically the interest that will be tacked on to the money your borrow.
Garth Brooks
The initials a.m. stand for ante meridian, Latin for "before noon." The initials p.m. stand for post meridian, Latin for "after noon."