[hand] in {one's} (notice|resignation)
1
to inform one's employer of one's intentions of leaving one's job after a certain period of time
- I decided to hand in my notice at the company after accepting a new job offer.
- She met with her boss to hand in her resignation and discussed her last working day with the company.
- After years of dedicated service, he handed in his notice to retire and spend more time with his family.
- He realized that his current job wasn't aligned with his career goals, so he officially handed in his resignation letter.
- The team was surprised when Jane suddenly handed in her notice.