| ARACIP | Agenţia Română de Asigurare a Calităţii în Învăţământul Superior - Romania’s Agency for Quality Assurance in Pre-University Education |
| asTTIe | New Zealand’s Assessment Tools for Teaching and Learning |
| BDE | Бирото за развој на образованието - Bureau for Development of Education |
| CSL | Ireland’s Centre for School Leadership |
| DES | Ireland’s Department of Education and Skills |
| ECEC | Early childhood education and care |
| ECTS | European Credit Transfer and Accumulation System |
| EGMA | Early Grade Mathematics Assessment |
| EGRA | Early Grade Reading Assessment |
| EMIS | Education Management Information System |
| ESCS | PISA index of economic, social and cultural status |
| EU | European Union |
| Eurostat | European Statistical Office |
| GDP | Gross domestic product |
| ICALT | International Comparative Analysis of Learning and Teaching |
| ICT | Information and communication technology |
| ID | Identity document |
| IES | Institutul de Științe ale Educației - Romania’s Institute of Educational Sciences |
| MESR | Ministerul Educației și Cercetării Științifice - Romania’s Ministry of National Education and Scientific Research |
| MoES | Министерство за образование и наука - Ministry of Education and Science |
| MOS | Московская онлайн школа - Moscow Online School |
| MQF | Mакедонската рамка за квалификации - Macedonian Qualification Framework |
| MTSP | Министерство за труд и социјална политика - Ministry of Labour and Social Policy |
| NAK | Nacionalno ocenjevanje znanja - Slovenia’s National assessment of Knowledge |
| NEC | Државен испитен центарl - National Education Centre |
| NEET | Not in employment, education or training |
| NGO | Non-governmental organisations |
| PIRLS | Progress in International Reading Literacy Study |
| PISA | OECD Programme for International Student Assessment |
| PPP | Purchasing power parity |
| SEI | Државниот просветен инспекторат - State Education Inspectorate |
| SEN | Special Education Needs |
| SPQI | School Performance Quality Indicators |
| SSO | Државен завод за статистика - State Statistical Office |
| TIMSS | Trends in International Mathematics and Science Study |
| UNESCO | United Nations Educational, Scientific and Cultural Organization |
| UNICEF | United Nations Children's Fund |
| USAID | United States Agency for International Development |
| USD | United States dollars |
| VET | Vocational Education and Training |
| VETC | Центар за стручно образование и обука - Vocational Education and Training Centre |
| ZELS | ЗЕЛС - Association of the Units of the Local Self-Government |