1. to dull the luster of (a metallic surface), especially by oxidation; discolor.
2. to diminish or destroy the purity of; stain; sully: The scandal tarnished his reputation. verb (used without object)
3. to grow dull or discolored; lose luster.
4. to become sullied. noun
5. a tarnished coating.
6. tarnished condition; discoloration; alteration of the luster of a metal.
7. a stain or blemish.
"wearings can be tarnishing."
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