<p>AP stands for “Advanced Placement”. It is a program put out by CollegeBoard where you can take classes within your high school, but college-level. At the end of the year, you take an exam, and are scored 1-5 on it. Your score determines college credit. And even if you do not do well on the exams, AP classes are rigorous and better than plain honors classes.</p>
<p>If you cannot take AP classes in your country, I would not worry about it. There are equivalents of that kind of thing, and colleges understand.</p>