Related to AS level: A2 level
a. a public examination taken for the General Certificate of Education, with a smaller course content than an A level: since 2000 taken either as the first part of a full A level or as a qualification in its own right
b. the course leading to this examination
c. (as modifier): AS-level English.
2. (Education) a pass in a subject at AS level: I've got three AS levels.