Otsukaresama desu (お疲れ様です): "Thank you for your hard work." This is the standard way to say goodbye to colleagues when leaving the office.
: At the end of a formal meeting or a large event where you do not have a personal relationship with the attendees.
: Saying "Sayonara" to an old habit, a bad job, or high fees (e.g., "Say sayonara to unwanted bank fees"). 4. Better Alternatives for Daily Use