contrast
     n 1: the opposition or dissimilarity of things that are compared;
          "in contrast to", "by contrast" [syn: {direct contrast}]
     2: the act of distinguishing by comparing differences
     3: a conceptual separation or demarcation; "there is a narrow
        line between sanity and insanity" [syn: {line}, {dividing
        line}, {demarcation}]
     4: the perceptual effect of the juxtaposition of very different
        colors
     5: the range of optical density and tone on a photographic
        negative or print (or the extent to which adjacent areas
        on a television screen differ in brightness)
     v 1: put in opposition to show or emphasize differences; "The
          middle school teacher contrasted her best student's work
          with that of her weakest student"
     2: to show differences when compared; be different; "the
        students contrast considerably in their artistic
        abilities" [syn: {counterpoint}]
Source: WordNet® 2.0