"AB"

"AB" can refer to several concepts depending on the context. In education, it often stands for "Associate of Arts" or "Bachelor's Degree," indicating levels of academic achievement in arts or humanities. In medicine, "AB" can denote "antibody," which are proteins produced by the immune system to identify and neutralize foreign objects like bacteria and viruses. In genetics, it may refer to "A" and "B" blood types in the ABO blood group system, crucial for transfusions. Understanding the specific context of "AB" is key to grasping its significance.