How to pronounce stained:
Example: "A badly stained tablecloth"
To discolour.
Example: "Armour stained with blood"
To taint or tarnish someone's character or reputation
To coat a surface with a stain
Example: "The stained glass used for church windows"
To become stained; to take a stain.
To treat (a microscopic specimen) with a dye, especially one that dyes specific features
To cause to seem inferior or soiled by comparison.