step out

verb4

1. •
   To exit a place on foot, often for a short time.

   • She opened the car door and stepped out of the car.
2. •
   To date, to be in a romantic relationship.

   • They've been stepping out since he told her he was interested in a family.
3. •
   (informal) Hurry up; get a move on.
4. •
   To increase the length, but not the rapidity, of the step.