substance (

     n 1: that which has mass and occupies space; "an atom is the
          smallest indivisible unit of matter" [syn: matter]
     2: the stuff of which an object consists
     3: the choicest or most essential or most vital part of some
        idea or experience: "the gist of the prosecutor's
        argument"; "the heart and soul of the Republican Party";
        "the nub of the story" [syn: kernel, core, center, essence,
         gist, heart, heart and soul, inwardness, marrow,
         meat, nub, pith, sum, nitty-gritty]
     4: the idea that is intended; "What is the meaning of this
        proverb?" [syn: meaning]
     5: considerable capital (wealth or income); "he is a man of
        means" [syn: means]
     6: what a communication that is about something is about [syn:
        message, content, subject matter]