block and list manipulation
the ropes or chains and blocks used in a hoisting tackle. noun a hoisting device in which a rope or chain is passed around a pair of blocks containing one or more pulleys. The upper block is secured overhead and the lower block supports the load, the effort being applied to the free end of […]
an association of residents of a city block who work together to maintain a safe and attractive neighborhood.
a practice among motion-picture distributors of contracting with an exhibitor to show a predetermined series of films.