Union and Vertical union

Union noun - The act or an instance of joining two or more things into one.

Vertical union and union are semantically related. In some cases you can replace phrase "Vertical union" with "Union", this terms are similar.

Nearby Words: unity, unionised, unionize, unionization, unionise

Vertical union noun - A labor union that admits all workers in a given industry irrespective of their craft.

Union and vertical union are semantically related. You can use "Union" instead a noun phrase "Vertical union".