The term "man of substance" refers to someone who has achieved success, wealth and status in society. There are various synonyms for this term that can be used to describe such individuals. One commonly used term is "pillar of the community." This phrase highlights their contribution to society and their importance within it. Another synonym is "captain of industry," which emphasizes their business acumen and achievement in the corporate world. "Mover and shaker" is another synonym, which denotes their ability to make things happen and drive change. Other synonyms for "man of substance" include "mogul," "tycoon," "magnate," and "baron." All these terms are used to describe an individual who is influential, powerful, and respected in society.