General term for a glossy shine or luster, used for surfaces, hair, etc.
I applied lip gloss to my lips before going out.
The paint on this car has a beautiful gloss.
I finished the photo by giving its surface a glossy coating.
This wallpaper has a glossy finish.
マット describes a flat, non-shiny finish, the direct opposite of the shiny look described by グロス.
クロス (cross, cloth) sounds and looks similar in katakana to グロス but has an unrelated meaning.
グロ (short for grotesque, meaning gory/macabre) and グロス (meaning a gross of 144 items, or a glossy finish) sound alike but are unrelated in meaning.
ダース means a dozen (12 items), while グロス means a gross (144 items, i.e. 12 dozen), so they're easily confused as similar packaging-quantity loanwords with very different sizes.
counter for small objects; counter for pieces · counter for military units · individual; one person · counter for years of age difference; counter for school years
lip gloss
gloss finish
gloss optimizer
Borrowed from English 'gloss'.