Repairing the car by himself gave him a real 'sense of achievement'. [=a proud feeling of having done something difficult and worthwhile]
The students were awarded (with) certificates of 'achievement'. [=documents saying that they reached an academic goal]
Tests measure students' academic 'achievement'. [=measure how much the students have learned]
(..) GANTHET: Needless to say, we're all shocked and saddened... ...by the news of Ardakian Trawl. She was a bold and gallant Green Lantern... ...whose achievements will long be remembered. But for now, we must set aside our mourning for the threat at hand. Glad you could make it. Sorry. (..)2011 Green Lantern: Emerald Knights