to make a short visit to a place, especially sb's house when they are ill / sick or need help :
She looks in on her elderly neighbour every evening.
Why don't you look in on me next time you're in town?
to make a short visit to a place, especially sb's house when they are ill / sick or need help :
She looks in on her elderly neighbour every evening.
Why don't you look in on me next time you're in town?
Oxford Advanced Learner's English Dictionary. Оксфордский английский словарь для изучающик язык на продвинутом уровне. 2005