1. (n.) The act of discoloring, or the state of being discolored; alteration of hue or appearance.

2. (n.) A discolored spot; a stain.

achromatization birthmark blanching blaze bleach bleaching blemish blotch brand bruise caste mark check checkmark cicatrix cut dapple decoloration decolorization decolorizing discolor discolorment dot earmark engraving etiolation fading fleck flick freckle gash graving hack jot lentigo lightening macula madder bleach mark market bleach marking mole mottle nevus nick notch paling patch point polka dot prick puncture scar scarification score scotch scratch scratching speck speckle splash splotch spot stain stigma strawberry mark tattoo tattoo mark tick tittle watermark whitening