A large flat surface, finished with black slate or a similar material, that can be written upon with chalk and subsequently erased; a chalkboard.
To use a blackboard to assist in an informal discussion.
A block of several sheets of blank paper that are bound together at the top; pad of paper.
A type of round token giving authority for a train to proceed over a single-track line.
A pill; a small, easily swallowed portion of a substance.
A slab of clay, stone or wood used for inscription.
A tablet computer, a type of portable computer.
A confection made from sugar, condensed milk and butter, produced in flat slabs, with a grainer texture than fudge.
A short scripture written by the founders of the Bahá'í faith.
A graphics tablet.
To form (a drug, etc.) into tablets.