leaver

noun2

1. •
   One who leaves.

   • This year's school leavers have excellent grades.
   • He's a leaver, not a stayer: he'll never be happy tied down in one place.
2. •
   (Australia) Synonym of schoolie (“a senior student”).

noun1

1. •
   (UK) Someone who supports Brexit, the United Kingdom's exit from the European Union.