Adjective discoloured has 1 sense
  1. discolored, discoloured - having the color spoiled with spots or streaks
    Antonym: unstained (indirect, via stained)
,Verb discolour has 1 sense
  1. discolor, discolour, colour, color - change color, often in an undesired manner; "The shirts discolored"
    --1 is one way to change
    Derived forms: noun discolouration1, noun discolouration2
    Sample sentences:
    Something ----s
    Somebody ----s
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