1. (n.)glass a hard, brittle, noncrystalline, more or less transparent substance, atomically a supercooled liquid, usu. produced by fusing silicates containing soda and lime, as in the ordinary variety used for windows and bottles.
2. glass any artificial or natural substance having similar properties and composition, as fused borax or obsidian.
3. glass something made of such a substance, as a windowpane.
4. glass a tumbler or other comparatively tall, handleless drinking container.
16. glass to scan with an optical instrument, as binoculars.
17. glass to reflect.
18. (n.)Glass Carter, 1858–1946, U.S. statesman.
Definition of 'GLASS'
Princeton's WordNet
1. (noun)glass a brittle transparent solid with irregular atomic structure
2. (noun)glass, drinking glass a container for holding liquids while drinking
3. (noun)glass, glassful the quantity a glass will hold
4. (noun)field glass, glass, spyglass a small refracting telescope
5. (noun)methamphetamine, methamphetamine hydrochloride, Methedrine, meth, deoxyephedrine, chalk, chicken feed, crank, glass, ice, shabu, trash 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. (noun)looking glass, glass a mirror; usually a ladies' dressing mirror
7. (verb)glass glassware collectively "She collected old glass"
8. (verb)glass, glaze furnish with glass "glass the windows"
9. (verb)glass scan (game in the forest) with binoculars
10. (verb)glass, glass in enclose with glass "glass in a porch"
1. (noun)glass a hard clear substance used to make windows a vase made of blue glass; a glass bottle
2. glass a glass container used for drinking, or the amount this holds a glass of milk; a set of juice glasses
Definition of 'GLASS'
Webster Dictionary
1. (verb)GLASS a hard, brittle, translucent, and commonly transparent substance, white or colored, having a conchoidal fracture, and made by fusing together sand or silica with lime, potash, soda, or lead oxide. It is used for window panes and mirrors, for articles of table and culinary use, for lenses, and various articles of ornament
2. (verb)GLASS any substance having a peculiar glassy appearance, and a conchoidal fracture, and usually produced by fusion
6. (verb)GLASS a drinking vessel; a tumbler; a goblet; hence, the contents of such a vessel; especially; spirituous liquors; as, he took a glass at dinner
7. (verb)GLASS an optical glass; a lens; a spyglass; -- in the plural, spectacles; as, a pair of glasses; he wears glasses
1. GLASS Hard, amorphous, brittle, inorganic, usually transparent, polymerous silicate of basic oxides, usually potassium or sodium. It is used in the form of hard sheets, vessels, tubing, fibers, ceramics, beads, etc.
Definitions of GLASS 
Afrikaans: glas
Arabic: زُجاج
Bulgarian: стъкло
Brazilian: vidro
Czech: sklo; skleněný
German: das Glas, Glas-...
Danish: glas; glas-
Greek: γυαλί
Spanish: vidrio
Estonian: klaas
Farsi: شیشه
Finnish: lasi
French: (en/de) verre
Hebrew: זכוכית
Hindi: कांच
Croatian: staklo
Hungarian: üveg
Indonesian: kaca
Icelandic: gler
Italian: vetro; di vetro
Japanese: ガラス
Korean: 유리
Lithuanian: stiklas; stiklinis
Latvian: stikls; stikla-
Malay: kaca
Dutch: glas; glazen
Norwegian: glass
Polish: kieliszek, szklanka
Persian: شیشه
Pashto: ګيلاس، ښيښه .
Portuguese: vidro
Romanian: (de/din) sticlă
Russian: стекло
Slovak: sklo; sklený
Slovenian: steklo
Serbian: staklo
Swedish: glas
Thai: แก้ว
Turkish: cam
Taiwanese: 玻璃
Ukrainian: скло
Urdu: شیشہ
Vietnamese: thuỷ tinh
Chinese: 玻璃
