Real Dictionary

contrast
a person who acts on behalf of another person, group, business, government, etc; representative [...]
a representation or likeness of a person or thing, esp in sculpture [...]
distinction or emphasis of difference by comparison of opposite or dissimilar things, qualities, etc (esp in the phrases by contrast, in contrast to or with) [...]
the state or quality of being sensitive [...]
the study, design, and manufacture of microscopes [...]
countable noun: If one thing is a contrast to another, it is very different from it.
uncountable noun: Contrast is the degree of difference between the darker and lighter parts of a photograph, television picture, or painting.
variable noun: A contrast is a great difference between two or more things which is clear when you compare them.
verb: If one thing contrasts with another, it is very different from it.
verb: If you contrast one thing with another, you point out or consider the differences between those things.