das Fernglas
			das Glas
			der Kelch
			die Scheibe
			der Spiegel

a glass  a glass of water  bulletproof glass  crystal glass  drinking glass  glass of beer  glass of water  glass of wine  glass pane  glass sheet  glass splinter  magnifying glass  of glass  to raise one's glass to so.  safety glass  shatterproof glass  smooth as glass  stained glass  watch-glass  water glass  wine glass