Real Dictionary

tray
countable noun: A tray is a flat piece of wood, plastic, or metal, which usually has raised edges and which is used for carrying things, especially food and drinks.

tray in American English
a flat receptacle made of wood, metal, glass, plastic, etc., often with slightly raised edges, used for holding or carrying articles

tray in American English 1
noun: a flat, shallow container or receptacle made of wood, metal, etc., usually with slightly raised edges, used for carrying, holding, or displaying articles of food, glass, china, etc

tray in American English 2
noun: a coin worth threepence

tray in British English
noun: a thin flat board or plate of metal, plastic, etc, usually with a raised edge, on which things can be carried

tray in Chemical Engineering
noun: A tray is a plate-shaped device which is used in a distillation vessel to bring together a vapor and liquid.

tray in Hospitality
noun: A tray is a flat piece of wood, plastic, or metal, which usually has raised edges and which is used for carrying things, especially food and drinks.