n.
a solid piece of something (usually having flat rectangular sides)
"the pyramids were built with large stone blocks"
a rectangular area in a city surrounded by streets and usually containing several buildings
"he lives in the next block"
同义词：city block
a three-dimensional shape with six square or rectangular sides
同义词：cube
a number or quantity of related things dealt with as a unit
"he reserved a large block of seats"; "he held a large block of the company's stock"
housing in a large building that is divided into separate units
"there is a block of classrooms in the west wing"
(computer science) a sector or group of sectors that function as the smallest data unit permitted
"since blocks are often defined as a single sector, the terms `block' and `sector' are sometimes used interchangeably"
an inability to remember or think of something you normally can do; often caused by emotional tension
"I knew his name perfectly well but I had a temporary block"
同义词：mental block
a simple machine consisting of a wheel with a groove in which a rope can run to change the direction or point of application of a force applied to the rope
同义词：pulleypulley-block
a metal casting containing the cylinders and cooling ducts of an engine
"the engine had to be replaced because the block was cracked"
同义词：engine blockcylinder block
an obstruction in a pipe or tube
"we had to call a plumber to clear out the blockage in the drainpipe"
同义词：blockageclosureocclusionstopstoppage
a platform from which an auctioneer sells
"they put their paintings on the block"
同义词：auction block
the act of obstructing or deflecting someone's movements
同义词：blocking
