PMG is an abbreviation for several different terms including Postmaster General, Paper Money Guaranty, Project Management Group, and Petroleum Marketing Group. There are several synonyms for each of these terms, depending on the context in which they are used. Some synonyms for Postmaster General include postal chief, postal director, and postal master. Synonyms for Paper Money Guaranty might include currency protection, banknote assurance, or note validation. Some synonyms for Project Management Group could include project oversight, project direction, or project coordination. Finally, some synonyms for Petroleum Marketing Group might include fuel distribution, gas sales, or oil marketing. Regardless of the specific context, there are always synonyms available to help convey the appropriate meaning.