achievement

/əˈtʃiv·mənt/ n [C]

Definition

› something that you did or got after planning and working to make it happen, and that therefore gives you a feeling of satisfaction, or the act of working to make this happen: [C] a scientific achievement [C] For an actor, winning an Oscar is one of the greatest achievements you can hope for.

(Definition of achievement n from the Cambridge Academic Content Dictionary © Cambridge University Press)