a level

noun British.

1. a public examination requiring advanced knowledge in a subject and taken at the end of secondary school, usually two years after O level.
2. a pass in this examination.

noun (in Britain)

1. 1. a public examination in a subject taken for the General Certificate of Education (GCE), usually at the age of 17–18
   2. the course leading to this examination
   3. (as modifier)A-level maths
2. a pass in a particular subject at A levelshe has three A levels