[intransitive, transitive] to stand outside somewhere such as your place of work to protest about sth or to try and persuade people to join a strike
罢工纠察◆200 workers were picketing the factory.
有 200 名工人在做工厂罢工纠察。◆Striking workers picketed outside the gates.
罢工工人在大门外纠察警戒。 ▸ ˈpicketer

noun