Definition from macmillandictionary.com
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I think I’ll colour my hair.
Rivers and lakes are often coloured green by algae.
She looked away from him, colouring slightly.
As a child, I could spend hours just colouring in.
Colour the boy’s eyes blue.
Don’t allow your friends’ opinions to colour your judgment.
early experiences that coloured her attitude to work
A tinge of regret coloured her tone.
Well colour me impressed!