| A | B |
| AFL-CIO | The American Federation of Labor and Congress of Industrial Organizations; federation of North American labor unions founded in 1955 |
| Agency shop | A union security agreement in which nonunion members are required to pay dues |
| Apprentice | A union worker who is just beginning in an occupation |
| Arbitrator | A person who assists in negotiations |
| Benefits | Advantages or payments employees receive in addition to their wages (e.g., sick time, holiday pay, health insurance) |
| Boycott | A union pressure strategy in which union members refuse to buy a company’s products and encourage others to do the same |
| Collective bargaining | The negotiating process in which union leaders and company representatives engage to determine the terms and working conditions that are to be provided to employees |
| Arbitration | The act of settling a dispute by using an uninvolved third party |