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 (*).

This is a dynamic tool, which is regularly updated by the UIS. The Institute welcomes feedback from users. Questions and comments should be sent to
Browse by letter
Search by word
  • Language
  • English
  • French
  • Spanish
  • Arabic
  • Russian
  • Chinese
Browse by tag
Show all terms on one page

Illiterate population, 25-64 years

Number of persons aged 25 to 64 years who cannot both read and write with understanding a short simple statement on their everyday life.

Population analphabète, 25 à 64 ans

Nombre de personnes âgées entre 25 et 64 ans qui ne peuvent pas lire et écrire, en le comprenant, un texte simple et court relatif à leur vie quotidienne.

Población analfabeta, 25 a 64 años

Número de personas entre 25 y 64 años de edad que no saben leer y escribir y comprender un texto simple y breve de su vida cotidiana.