noun

1. COLOUR, the appearance of objects (or light sources) described in terms of a person's perception of their hue and lightness (or brightness) and saturation
2. COLOUR, an outward or token appearance or form that is deliberately misleading
3. COLOUR, a visual attribute of things that results from the light they emit or transmit or reflect
4. COLOUR, the timbre of a musical sound
5. COLOUR, interest and variety and intensity
6. COLOUR, (physics) the characteristic of quarks that determines their role in the strong interaction
7. COLOUR, any material used for its color

verb

1. COLOUR, change color, often in an undesired manner
2. COLOUR, add color to
3. COLOUR, affect as in thought or feeling
4. COLOUR, give a deceptive explanation or excuse for
5. COLOUR, decorate with colors
6. COLOUR, modify or bias

adjective

1. COLOUR, having or capable of producing colors