Meaning
Formal approval or agreement indicating that a deliverable meets requirements.
Three examples from work
Sprint milestone
Product ManagerWe need stakeholder sign-off before deploying to prod.
StakeholderI reviewed the demo and gave my sign-off this morning.
Contract delivery
Account ExecutiveHave we received written sign-off from the procurement team?
PMYes, the confirmation email arrived an hour ago.
Design review
DesignerIs this prototype ready for developer handoff?
LeadOnce we get brand sign-off on typography, yes.