Debasement for profit or impure motives.
Engaging in sexual activity with another person in exchange for goods (not necessarily money) or services.
Engaging in sexual activity with another person for pay.
A blemish on one's character or reputation.
A reagent or dye used to stain microscope specimens so as to make some structures visible.
A discoloured spot or area.
Any of a number of non-standard tinctures used in modern heraldry.
A substance used to soak into a surface and colour it.
To cause to seem inferior or soiled by comparison.
To coat a surface with a stain
To treat (a microscopic specimen) with a dye, especially one that dyes specific features
To taint or tarnish someone's character or reputation
To discolour.
To become stained; to take a stain.