A-level stands for Advanced Level, a qualification offered in the United Kingdom and some other countries. It is typically taken by students aged 16 to 18 after completing their GCSE exams. A-levels are usually studied over two years and involve in-depth study of specific subjects, allowing students to specialize in areas of interest. A-levels are important for university admissions, as many higher education institutions require specific A-level subjects for entry into degree programs. Students usually take three to four A-level subjects, and the grades achieved can significantly impact their future educational and career opportunities.