Topic: DAILY LIFE
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| Language: | Old English |
| Origin: | trig, treg |
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tray
[countable]
[countable]1D a flat piece of plastic, metal, or wood, with raised edges, used for carrying things such as plates, food etc : 
The waiter brought drinks on a tray.
The waiter brought drinks on a tray.2B a flat open container with three sides used for holding papers, documents etc on a desk
in tray (=for holding documents you still have to deal with)
out tray (=for holding documents you have dealt with)
3 especially British English a flat open container with four sides used for holding certain things : a cat litter tray
a cat litter tray seed tray (=a tray in which you plant seeds)
