1. occurring after or relating to the period following graduation from a school or university
Usage: most common use

1. the period of time after graduation from a school or university
Usage: less common than the adjective form

Examples

• She pursued postgraduation studies in molecular biology.
• Many students feel uncertain about their postgraduation plans.
• The university offers postgraduation employment support services.
• His postgraduation years were spent traveling and working abroad.
• Postgraduation debt is a concern for many recent graduates.
• The school provides postgraduation mentoring programs for alumni.