[noun] [U] [formal]Student levels/standards of punctuality, behaviour and attainment (= achievement) are very low.The department has been set some very high attainment targets.(formal) A person's attainments are the things they have done and the skills they have learned.
ATTAINMENT
Meaning of ATTAINMENT in English
Cambridge English vocab. Кембриджский английский словарь. 2012