any mechanical or electrical device that transmits or modifies energy to perform or assist in the performance of human tasks | the act of obstructing or deflecting someone's movements |
a motor vehicle with four wheels; usually propelled by an internal combustion engine | a solid piece of something (usually having flat rectangular sides) |
a device for overcoming resistance at one point by applying force at some other point | an obstruction in a pipe or tube |
a group that controls the activities of a political party | 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 |
an intricate organization that accomplishes its goals efficiently | a metal casting containing the cylinders and cooling ducts of an engine |
an efficient person | a platform from which an auctioneer sells |
| housing in a large building that is divided into separate units |
| an inability to remember or think of something you normally can do; often caused by emotional tension |
| a number or quantity of related things dealt with as a unit |
| a rectangular area in a city surrounded by streets and usually containing several buildings |
| (computer science) a sector or group of sectors that function as the smallest data unit permitted |
| a three-dimensional shape with six square or rectangular sides |