an obstruction in a pipe or tube
“we had to call a plumber to clear out the blockage in the drainpipe”
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
shut out from view or get in the way so as to hide from sight
“The thick curtain blocked the action on the stage”
interfere with or prevent the reception of signals
“block the signals emitted by this station”
a metal casting containing the cylinders and cooling ducts of an engine
“the engine had to be replaced because the block was cracked”
a rectangular area in a city surrounded by streets and usually containing several buildings
“he lives in the next block”
hinder or prevent the progress or accomplishment of
“His brother blocked him at every turn”
a number or quantity of related things dealt with as a unit
“he reserved a large block of seats”