National Higher Education Entrance Examination
Exame Nacional do Ensino Médio (; ), shortened as Enem () is a non-mandatory, standardized Brazilian national exam, which evaluates high school students in Brazil. The ENEM is the most important exam of its kind in Brazil, with more than 8.6 million registered candidates in 2016. It is the second largest in the world after the National Higher Education Entrance Examination, the entrance examination of higher education in China.