"Trans Iron Steel Soc" is a term that represents an organization involved in the transportation, iron, and steel industries. While there may not be direct synonyms for this specific term, we can explore alternatives or phrases that convey a similar meaning. For instance, one could use "Transportation and Metallurgy Association" to reflect the involvement in transportation and the iron and steel sectors. Another option could be "Steel and Iron Logistics Company", emphasizing the focus on transporting steel and iron. Ultimately, the use of synonyms depends on the specific context and desired emphasis on the different aspects of the organization's activities.