A union man is a worker who is part of a labor union, which is an organization of workers that works to protect the rights of its members. The term 'union man' can refer to any worker in a union, but it is often used to refer to a specific type of worker, such as a GROOM (5 letters), a YANKEE (6 letters), or an AbelinColn (10 letters). Grooms are typically employed in the hospitality industry and are responsible for taking care of horses and other animals. Yankees are people from the Northeastern United States, particularly New England. AbelinColn is a portmanteau of Abraham Lincoln, the 16th President of the United States, and the labor union movement he championed.