secondary picketing
noun[U]
ukusHR,WORKPLACE
theactoftryingtopreventpeople,especiallyemployees, from going into a company'sbuildingwhen thatcompanyis doingbusinesswith another one where theemployeesareonstrike:
In manycountriessecondarypicketingofcompaniesnotdirectlyinvolvedin adisputehas beenruledillegal.
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picketnoun