Meaning
An agreed-upon checklist of quality standards that every work item must meet before being marked as complete.
Three examples from work
Sprint review
DevThe feature code is written, but is it considered done?
LeadNot yet; our definition of done requires unit tests and updated API docs.
Retro discussion
QABugs leaked to staging because accessibility checks weren't part of our DoD.
Scrum MasterLet's officially add an automated axe-core check to our definition of done.
Onboarding
New hireWhere can I find the team's definition of done?
MentorIt's documented in our engineering handbook on the repository wiki.
Abbreviated as 'DoD'. While acceptance criteria apply to a specific user story, the Definition of Done applies universally to all stories.