plural of office block

(on a bicycle) One of two small blocks fitted to a brake caliper, which rub on the wheel rim when the brake is applied.

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.