Definition of CSE in English:

CSE

noun

  • 1[mass noun] (in the UK except Scotland) a qualification in a specific subject formerly taken by school students aged 14–16, at a level below O level. It was replaced in 1988 by the GCSE.

    1. 1.1[count noun]A CSE exam or pass.
      ‘a CSE in French’
      ‘Gary left school with just four CSEs’
      [as modifier] ‘CSE examinations’

Origin

1960s: short for Certificate of Secondary Education.