(n)blocka 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”
(n)block(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”
(n)block, mental blockan 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”
(n)pulley, pulley-block, pulley block, blocka 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
(n)engine block, cylinder block, blocka metal casting containing the cylinders and cooling ducts of an engine“the engine had to be replaced because the block was cracked”
(v)obstruct, blockshut out from view or get in the way so as to hide from sight“The thick curtain blocked the action on the stage”, “The trees obstruct my view of the mountains”
