(1)   A small refracting telescope
(2)   A container for holding liquids while drinking
(3)   Glassware collectively
"She collected old glass"
(4)   A mirror; usually a ladies' dressing mirror
(5)   An amphetamine derivative (trade name Methedrine) used in the form of a crystalline hydrochloride; used as a stimulant to the nervous system and as an appetite suppressant
(6)   The quantity a glass will hold
(7)   A brittle transparent solid with irregular atomic structure


(8)   Become glassy or take on a glass-like appearance
"Her eyes glaze over when she is bored"
(9)   Put in a glass container
(10)   Enclose with glass
"Glass in a porch"
(11)   Scan (game in the forest) with binoculars
(12)   Furnish with glass
"Glass the windows"


From , cognate with Old Saxon and Old High German , which (in OHG) is attested as a gloss for Latin . These words are developed from . Possibly ultimately from the Proto-Germanic root (compare glow).


  1. A solid, transparent substance made by melting sand with a mixture of soda, potash and lime.
    The tabletop is made of glass.
  2. A vessel from which one drinks, especially one made of glass, plastic, or similar translucent or semi-translucent material.
    Fill my glass with milk please.
  3. The quantity of liquid contained in such a vessel.
    Would you like a glass of milk?
  4. Amorphous (non-crystalline) substance.
    A popular myth is that window glass actually is an extremely viscous liquid.
  5. Glassware.
    We collected art glass.
  6. A mirror.
    She adjusted her lipstick in the glass.
  7. A magnifying glass or telescope.
  8. The backboard.
    He caught the rebound off of the glass.
  9. The clear, protective screen surrounding a hockey rink.
    He fired the outlet pass off the glass.


glass (no or )
  1. Fragile.
    He has a glass ankle.


  1. To furnish with glass; to glaze.
  2. To enclose with glass.
  3. To strike (someone), particularly in the face, with a drinking glass with the intent of causing injury.
  4. To bombard an area with such intensity (nuclear bomb, fusion bomb, etc) as to melt the landscape into glass.


  1. A warning called out to alert teammates that a shot is about to rebound off the backboard.
    The point guard launched a wobbly attempt at a three-pointer and immediately called "Glass!"