vb befoul, blacken, blemish, blot, darken, dim, discolour, drag through the mud, dull, lose lustre or shine, rust, smirch, soil, spot, stain, sully, taint
n blackening, black mark, blemish, blot, discoloration, rust, smirch, spot, stain, taint
, vb brighten, enhance, gleam, polish up, shine
English Collins Dictionary - English synonyms & Thesaurus
tarnish ( tarnishes 3rd person present) ( tarnishing present participle) ( tarnished past tense & past participle )
1 verb If you say that something tarnishes someone's reputation or image, you mean that it causes people to have a worse opinion of them than they would otherwise have had.
The affair could tarnish the reputation of the prime minister... V n
He says he wants to improve the tarnished image of his country.
2 verb If a metal tarnishes or if something tarnishes it, it becomes stained and loses its brightness.
It never rusts or tarnishes... V
Wear cotton gloves when cleaning silver, because the acid in your skin can tarnish the metal. V n
...its brown surfaces of tarnished brass.
3 n-uncount Tarnish is a substance which forms of the surface of some metals and which stains them or causes them to lose their brightness.
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