/ˈtɑːrnɪʃ/
tar·nish
BrE /ˈtɑːnɪʃ/
NAmE /ˈtɑːrnɪʃ/
[I, T]
if metal tarnishes or sth tarnishes it, it no longer looks bright and shiny
The mirrors had tarnished with age.
~ sth
The silver candlesticks were tarnished and dusty.
[T]
~ sth
to spoil the good opinion people have of sb/sth
SYN taint
He hopes to improve the newspaper’s somewhat tarnished public image.
tar·nish
BrE /ˈtɑːnɪʃ/
NAmE /ˈtɑːrnɪʃ/
[sing., U]
a thin layer on the surface of a metal that makes it look dull and not bright