[noun] [U] approving - smooth brightness of a surfaceThe conditioner gives the hair a beautiful soft sheen.Using this polish will restore the sheen to your furniture/car.(figurative) Her appearance is always perfect, with the sheen (= well cared-for attractive appearance) that only money can buy.
SHEEN
Meaning of SHEEN in English
Cambridge English vocab. Кембриджский английский словарь. 2012