Definition of achievement noun from the Oxford Advanced American Dictionary

Oxford3000 Academic

achievement

noun
/əˈtʃivmənt/
 
 
1 [countable] a thing that someone has done successfully, especially using their own effort and skillthe greatest scientific achievement of the decadeIt was a remarkable achievement for such a young player.They were proud of their children's achievements.2 [uncountable] the act or process of achieving somethingthe need to raise standards of achievement in educationEven a small success gives you a sense of achievement (= a feeling of pride).