a solid piece of something (usually having flat rectangular sides)

a rectangular area in a city surrounded by streets and usually containing several buildings

a three-dimensional shape with six square or rectangular sides

a number or quantity of related things dealt with as a unit

housing in a large building that is divided into separate units

(computer science) a sector or group of sectors that function as the smallest data unit permitted

an inability to remember or think of something you normally can do; often caused by emotional tension

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

a metal casting containing the cylinders and cooling ducts of an engine

an obstruction in a pipe or tube

a platform from which an auctioneer sells

the act of obstructing or deflecting someone's movements