Definition of tray :
1. A flat, broad vessel on which dishes, glasses, etc., are carried; a waiter; a salver.
2. A shallow box, generally without a top, often used within a chest, trunk, box, etc., as a removable receptacle for small or light articles.
3. A small trough or wooden vessel, sometimes scooped out of a block of wood, for various domestic uses, as in making bread, chopping meat, etc.
4. To betray; to deceive.
container (part of speech: noun)
storage, container, bladder, pouch, ladle, locker, drum, bottle, bucket, tank, holder, sack, crate, bowl, shelf, vault, box, trunk, wallet, receptacle, cup, purse, bin, suitcase, can, cabinet, chest, stomach, flask, belly, jar, repository, reservoir, pot, pocket, cupboard, drawer, decanter, bag, closet, barrel, case, jug, vat, basket, cask