prominence
     n 1: the state of being prominent: widely known or eminent [ant:
          {obscurity}]
     2: relative importance
     3: something that bulges out or is protuberant or projects from
        a form [syn: {bulge}, {bump}, {hump}, {gibbosity}, {gibbousness},
         {jut}, {protuberance}, {protrusion}, {extrusion}, {excrescence}]
Source: WordNet® 2.0