tablet

noun

• 1a flat slab of stone, clay, or wood, used especially for an inscription: at the corner of the apse is a memorial tablet
• Architectureanother term for table (sense 3 of the noun).

• 2chiefly British a small disc or cylinder of a compressed solid substance, typically a measured amount of a medicine or drug: headache tablets ecstasy tablets
• British a small block or bar of soap.

• 3North American a writing pad.
• (also tablet computer or tablet PC) ( trademark in the UK) a small portable computer that accepts input directly on to its screen rather than via a keyboard or mouse.

• 4a kind of token giving authority for a train to proceed over a single-track line.

• 5 [mass noun] Scottish a traditional sweet made from sugar, condensed milk, and butter.