Definitions
1.nounThe act of achieving or performing; a successful performance; accomplishment
2.nounA great or heroic deed or feat; something accomplished by valor or boldness
3.nounAn escutcheon or ensign armorial; now generally applied to the funeral shield commonly called hatchment.
4.nounAn award for completing a particular task or meeting an objective in a video game."Finishing the game does not give you a 100% score until you have unlocked all of the achievements."
5.noun(grammar) The lexical aspect (aktionsart) of verbs or predicates that change in an instant.