Watercolor
Part of speech: noun
Definition: A painting technique using paint made of colorants suspended or dissolved in water. Any artwork produced by this method. Any paint used in this method.
Part of speech: adjective
Definition: Pertaining to the methods or products of watercolor.
Example sentence: If London is a watercolor, New York is an oil painting.
Watercolour
Part of speech: noun
Definition: A water-soluble pigment.A genre of painting made with such a pigment; an example of this genre, or the technique for making it.