departure

noun
  1. The act of leaving, especially to start a journey. noun
    The departure of the train is scheduled for 3 PM.
    We were sad to witness the departure of our friends after the long weekend.
  2. A deviation from an accepted, prescribed, or traditional course of action or thought. noun
    The new policy represents a significant departure from previous guidelines.
    Her latest novel is a departure from her usual romantic themes, exploring more complex social issues.
  3. The act of leaving one's job, position, or role. noun
    His departure from the company was unexpected and left a gap in the leadership team.
    The CEO announced her departure at the end of the fiscal year.