Source : WordNet®

exposit
     v 1: state; "set forth one's reasons" [syn: {set forth}, {expound}]
     2: add details, as to an account or idea; clarify the meaning
        of and discourse in a learned way, usually in writing;
        "She elaborated on the main ideas in her dissertation"
        [syn: {elaborate}, {lucubrate}, {expatiate}, {enlarge}, {flesh
        out}, {expand}, {expound}, {dilate}] [ant: {abridge}]