What is another word for "tablet"?

Roget's Thesaurus (1911) lists these synonyms for "tablet": bed, board, coat, course, cover, covering, cut, dess, discoid, escarpment, eschar, even, film, flag, flagstone, flake, flat, flatness, flatten, floor, flounder, fluke, flush, foil, hand, horizontal, integument, lamella, lamina, layer, leaf, level, membrane, nest, onion, pancake, pare, peel, pellicle, plane.