tablet

Concise Oxford English Dictionary © 2008 Oxford University Press:
tablet/ˈtablət/

▶noun

• 1 a flat slab of stone, clay, or wood, used especially for an inscription.

  ■ Architecture another term for table (sense 3 of the noun).

• 2 chiefly Brit. a pill.

• 3 Brit. a small flat piece of soap.

• 4 N. Amer. a writing pad.

• 5 a token giving authority for a train to proceed over a single-track line.

– origin ME: from OFr. tablete, from a dimin. of L. tabula (see table).