what is tray a
tray (plural trays) 1  A small, typically rectangular or round, flat, rigid object upon which things are carried. quotations â¼ 1963, Margery Allingham, chapter 2, in The China Governess: Now that she had rested and had fed from the luncheon tray Mrs. Broome had just removed, she had reverted to her normal gaiety. She looked cool in a grey tailored cotton dress with a terracotta scarf and shoes and her hair a black silk helmet.