The UIS Glossary includes statistical terms related to education, science, technology and innovation, culture, and communication & information . Some of the entries contain translations in one or more of the following languages: Arabic, English, French and Spanish. Other entries provide more detailed information, such as definitions, calculation formulas for indicators and sources. Indicators are marked with an asterisk (*).

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Under-age students

Students who are younger than the official school-age range for the educational programme they are enrolled in.

Élèves dont l’âge est inférieur à l’âge approprié

Élèves plus jeunes que l’âge officiel du programme d’enseignement dans lequel ils sont inscrits.

Alumnos bajo la edad teórica de admisión

Alumnos cuya edad es menor que la edad oficial del programa educativo en el cual están matriculados.

Учащиеся, младше официально установленного возраста

Учащиеся, младше официально установленного возраста для данной образовательной программы.