Watercolor – (American English) or watercolour (Commonwealth and Ireland), also aquarelle from French, is a painting method in which the paints are made of pigments suspended in a water-soluble vehicle. The term “watercolor” refers to both the medium and the resulting artwork.
Gouache – French: also spelled guache, is a type of paint in the category watermedia consisting of pigment, a binding agent (usually gum arabic), and sometimes added inert material, designed to be used in an opaque method. It also refers to paintings that use this opaque method.
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