Dictionary.net

(photography) 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)

the perceptual effect of the juxtaposition of very different colors

the opposition or dissimilarity of things that are compared; "in contrast to", "by contrast"

put in opposition to show or emphasize differences; "The middle school teacher contrasted her best student's work with that of her weakest student"

the perceptual effect of the juxtaposition of very different colors

the opposition or dissimilarity of things that are compared; "in contrast to", "by contrast"

put in opposition to show or emphasize differences; "The middle school teacher contrasted her best student's work with that of her weakest student"

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)

To stand in opposition; to exhibit difference, unlikeness, or opposition of qualities.

To set in opposition, or over against, in order to show the differences between, or the comparative excellences and defects of; to compare by difference or contrariety of qualities; as, to contrast the present with the past.

To give greater effect to, as to a figure or other object, by putting it in some relation of opposition to another figure or object.

The act of contrasting, or the state of being contrasted; comparison by contrariety of qualities.

Opposition or dissimilitude of things or qualities; unlikeness, esp. as shown by juxtaposition or comparison.

The opposition of varied forms, colors, etc., which by such juxtaposition more vividly express each other's peculiarities.

To compare in order to show unlikeness; to state the difference between.

To be different, as shown by comparison.

Difference of qualities shown by comparison; the thing or quality opposed to another.

A comparison in which the differences between two objects are shown.

To stand against or in opposition to.

To set in opposition, in order to show superiority or give effect.

Opposition or unlikeness in things compared: exhibition of differences.

Opposition or strong unlikeness; comparison of opposites.

To place or show in opposition.

To stand in opposition; exhibit opposite qualities.

To compare in order to show unlikeness.

To stand in opposition; show unlikeness.

Partial unlikeness between things compared; also, the things thus opposed.

Opposition or dissimilitude of things or qualities, the presentation of opposite things with a view to comparison.

To set in opposition different things or qualities, to show more strikingly the superior excellence of one to another.

To stand in contrast or opposition.

Opposition or difference of qualities made manifest by direct comparison; opposition of outline or colour to increase effect.

To oppose different things, qualities, or conditions to each other that, by comparison, the superior excellence of one of them may be seen; to set things in opposition, or side by side, in order that the superiority of one of them may be exhibited in a more striking point of view.

A comparison of two or more things for the purpose of showing their difference, also the degree of difference so detected.

n. Exhibition of dissimilarity; differential comparison; —juxtaposition of bodies, figures, or qualities, to set off each other, or to show their relative excellence; —the result of such comparison.

Opposition and dissimilitude of figures, by which one contributes to the visibility or effect of another.