Glossaries and terminology reference

 EUROPA Glossary

http://europa.eu/scadplus/glossary/index_en.htm#P

Glossary of DG Education and culture - department youth

http://ec.europa.eu/youth/glossary/index_en.htm

Glossary of Council of Europe

http://www.coe.int/t/dg4/education/edc/What_is_EDC/GlossaryKeyTerms_en.asp#P181_6273