contrast-n; 4 Senses

Sense Number 1: The opposition or dissimilarity of things that are compared.

Commentary: CONTRAST[+comparison]

Examples:
In contrast to my sister, my brother is kind.
Margaret Thatcher seems lovely by contrast.

Mappings:
PropBank: contrast.01
WordNet 3.0 Sense Numbers: 1

Sense Number 2: The act of distinguishing by comparing differences.

Commentary: CONTRAST[+event]

Examples:
We make a contrast between the old and new paradigms.
Wordsworth draws a contrast between the daffodils and the sky.

Mappings:
PropBank: contrast.01
WordNet 3.0 Sense Numbers: 2

Sense Number 3: A conceptual separation or distinction.

Commentary: CONTRAST[+distinction]

Examples:
There is a narrow contrast between genius and insanity.
The contrast between authors is fine.

Mappings:
PropBank: contrast.01
WordNet 3.0 Sense Numbers: 3

Sense Number 4: A perceptual distinction based on color or shading.

Commentary: CONTRAST[+visual]

Examples:
We should increase the contrast in this photograph.
The contrast between light and shadow is extreme.
I hate the contrast of these two colors.

Mappings:
PropBank: contrast.01
WordNet 3.0 Sense Numbers: 4, 5