( in full Advanced Subsidiary level ) n [ U , C ]
( in England and Wales ) an exam usually taken in Year 12 of school or college (= the year before the final year) when students are aged 17. Together with A2 level exams, AS levels form the A level (Advanced level) qualification, which is needed for entrance to universities:
Students will normally take four or five AS subjects.
She’s doing an AS (level) in French.