stay back

verb2

1. •
   To keep one's distance from a place, often because of some danger.

   • 'Sir, you have to get back,' said a uniformed voice, an ambulance officer this time. 'We're asking everybody to stay back.' 'I live here,' he said. 'With my wife and my boy. Have you seen them?' — 2011
2. •
   To remain (at work, school, organisation, country, etc.) after normal hours

   • Many of these students, in fact, do stay back and work in Singapore after their studies are over. — 2009