up
[ no passive ] ( informal ) to visit or make contact with sb, especially when you have not seen them for a long time :
Do look me up the next time you're in London.
up
[ no passive ] ( informal ) to visit or make contact with sb, especially when you have not seen them for a long time :
Do look me up the next time you're in London.
Oxford Advanced Learner's English Dictionary. Оксфордский английский словарь для изучающик язык на продвинутом уровне. 2005