What is Labor Disputes?

Alternative Forms: Labor dispute
Legal Definition
Labor Disputes refer to controversy between an employer and its employees regarding the terms (such as conditions of employment, fringe benefits, hours or work, tenure, wages) to be negotiated during collective bargaining, or the implementation of already agreed upon terms.
-- Wikipedia
Legal Definition
Gap regarding the terms and conditions of employment, fringe benefits, hours or work, tenure, wages being negotiated during collective bargaining between an employer and its employees