[{"Bold_text": "verb (used with object)", "List Items": ["to dull the luster of (a metallic surface), especially by oxidation; discolor.Antonyms: brighten", "to diminish or destroy the purity of; stain; sully:The scandal tarnished his reputation.Synonyms: soil , blemish , taint"]}, {"Bold_text": "verb (used without object)", "List Items": ["to grow dull or discolored; lose luster.", "to become sullied."]}, {"Bold_text": "noun", "List Items": ["a tarnished coating.", "tarnished condition; discoloration; alteration of the luster of a metal.", "a stain or blemish."]}]