Stain

To discolor by the application of foreign matter; to make foul; to spot; as, to stain the hand with dye; armor stained with blood.

To color, as wood, glass, paper, cloth, or the like, by processess affecting, chemically or otherwise, the material itself; to tinge with a color or colors combining with, or penetrating, the substance; to dye; as, to stain wood with acids, colored washes, paint rubbed in, etc.; to stain glass.

To spot with guilt or infamy; to bring reproach on; to blot; to soil; to tarnish.

To cause to seem inferior or soiled by comparison.

To give or receive a stain; to grow dim.

A discoloration by foreign matter; a spot; as, a stain on a garment or cloth.

A natural spot of a color different from the gound.

Taint of guilt; tarnish; disgrace; reproach.

Cause of reproach; shame.

A tincture; a tinge.

color for microscopic study; "The laboratory worker dyed the specimen"

a soiled or discolored appearance; "the wine left a dark stain"

anything regarded as making something unclean

a symbol of disgrace or infamy; "And the Lord set a mark upon Cain" - The Bible, Genesis 4:15

an act that brings discredit to the person who does it; "he made a huge blot on his copybook"