) any action, such as a strike or go-slow, taken by employees in industry to protest against working conditions, redundancies, etc
Collins English Dictionary - Complete & Unabridged 10th Edition
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Both parties are willing to return to the negotiating table, though further industrial action may occur this week.
Barely a week goes by without some form of industrial action.
Most of the strikes were considered illegal by the government under the industrial action law.
Once a dispute is referred to arbitration, industrial action is prohibited.
There is evidence to show that industrial action can accelerate a decline in the postal market.