/ ˈpɪkɪtɪŋ; NAmE / noun
[ U ] the activity of standing outside the entrance to a building in order to protest about sth and stop people from entering the building :
mass picketing of the factory
/ ˈpɪkɪtɪŋ; NAmE / noun
[ U ] the activity of standing outside the entrance to a building in order to protest about sth and stop people from entering the building :
mass picketing of the factory
Oxford Advanced Learner's English Dictionary. Оксфордский английский словарь для изучающик язык на продвинутом уровне. 2005