Attainment is the achievement of something you've worked toward, especially something difficult or important. When you reach a goal after sustained effort, that's an attainment. A scientist's attainment of a breakthrough discovery represents years of research and experimentation. A student's attainment of straight A's reflects consistent study and dedication.

The word emphasizes both the difficulty of the goal and the satisfaction of finally reaching it. You wouldn't usually describe getting dressed in the morning as an attainment, but you might describe learning to play a complex piano piece as one. Attainment suggests real accomplishment: something that required planning, persistence, and probably some setbacks along the way.

You'll often see this word in formal contexts, like discussions of educational attainment (how far someone progressed in school) or professional attainment (career achievements). When someone writes about “the attainment of excellence,” they mean reaching a high standard through dedicated work. The word captures that moment when effort transforms into achievement: when what you've been working toward finally becomes real.