contrast

noun

1
the act of distinguishing by comparing differences
2
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)
3
the perceptual effect of the juxtaposition of very different colors
4
a conceptual separation or distinction
there is a narrow line between sanity and insanity
5
the opposition or dissimilarity of things that are compared
in contrast to", "by contrast

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

Also useful for “contrast”:Unscrambler— Rearrange the letters in “contrast”