glass

Definitions

• (uncountable) An amorphous solid, often transparent substance made by melting sand with a mixture of soda, potash and lime.
• (countable) A vessel from which one drinks, especially one made of glass, plastic, or similar translucent or semi-translucent material.
• (metonymically) The quantity of liquid contained in such a vessel.
• (uncountable) Glassware.
• A mirror.
• A magnifying glass or telescope.
• (sport) A barrier made of solid, transparent material.
• A barometer.
• (attributive) Transparent or translucent.
• (obsolete) An hourglass.
• (uncountable) Lenses, considered collectively.