Glassy has 5 different meanings across 1 category:
Adjective
Glass marble.
resembling glass in smoothness and shininess and slickness
"the glassy surface of the lake"
"the pavement was...glassy with water"
(used of eyes) lacking liveliness
"empty eyes"
"a glassy stare"
"his eyes were glazed over with boredom"
(of ceramics) having the surface made shiny and nonporous by fusing a vitreous solution to it
"glazed pottery"
"glassy porcelain"
"hard vitreous china used for plumbing fixtures"
Of or like glass, especially in being smooth and somewhat reflective.