plural of viol block

(nautical) A large single block big enough to reeve a small hawse.

plural of joss-block

Alternative form of joss-block

(UK, dialect, obsolete) A horse-block.

plural of jossing-block

plural of plate block

(philately) A block of stamps from the edge of the sheet which shows the plate from which the stamps were printed.

(US) A small geographical unit that is part of the US censuses

(rail transport) a type of signalling system on a single-track line which dispenses with the need for a train to carry a token (sense 21).