Definition of stain

• v. t. - To discolor by the application of foreign matter; to make foul; to spot; as, to stain the hand with dye; armor stained with blood.
• v. t. - 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.
• v. t. - To spot with guilt or infamy; to bring reproach on; to blot; to soil; to tarnish.
• v. t. - To cause to seem inferior or soiled by comparison.
• v. i. - To give or receive a stain; to grow dim.
• n. - A discoloration by foreign matter; a spot; as, a stain on a garment or cloth.
• n. - A natural spot of a color different from the gound.
• n. - Taint of guilt; tarnish; disgrace; reproach.
• n. - Cause of reproach; shame.
• n. - A tincture; a tinge.