barrier β A barrier is something such as a rule, law, or policy that makes it difficult or impossible for something to happen or be achieved.
barricade β A barricade is a line of vehicles or other objects placed across a road or open space to stop people getting past, for example during street fighting or as a protest.
closure β The closure of a place such as a business or factory is the permanent ending of the work or activity there.
restriction β something that restricts; a restrictive condition or regulation; limitation.
roadblock β an obstruction placed across a road, especially of barricades or police cars, for halting or hindering traffic, as to facilitate the capture of a pursued car or inspection for safety violations.
siege β the act or process of surrounding and attacking a fortified place in such a way as to isolate it from help and supplies, for the purpose of lessening the resistance of the defenders and thereby making capture possible.
stoppage β an act or instance of stopping; cessation of activity: the stoppage of all work at the factory.
bar β A bar is a place where you can buy and drink alcoholic drinks.
clog β When something clogs a hole or place, it blocks it so that nothing can pass through.
hindrance β an impeding, stopping, preventing, or the like.
infarct β a localized area of tissue, as in the heart or kidney, that is dying or dead, having been deprived of its blood supply because of an obstruction by embolism or thrombosis.
obstacle β something that obstructs or hinders progress.
obstruction β something that obstructs, blocks, or closes up with an obstacle or obstacles; obstacle or hindrance: obstructions to navigation.
snag β a tree or part of a tree held fast in the bottom of a river, lake, etc., and forming an impediment or danger to navigation.
stop β to cease from, leave off, or discontinue: to stop running.
wall β any of various permanent upright constructions having a length much greater than the thickness and presenting a continuous surface except where pierced by doors, windows, etc.: used for shelter, protection, or privacy, or to subdivide interior space, to support floors, roofs, or the like, to retain earth, to fence in an area, etc.
blank wall β an impassable barricade or obstacle; a situation in which further progress is impossible: Attempts to get information by questioning the neighbors ran into a blank wall.
blockage β A blockage in a pipe, tube, or tunnel is an object which blocks it, or the state of being blocked.
clump β A clump of things such as trees or plants is a small group of them growing together.
lump β a piece or mass of solid matter without regular shape or of no particular shape: a lump of coal.
array β An array of different things or people is a large number or wide range of them.
batch β A batch of things or people is a group of things or people of the same kind, especially a group that is dealt with at the same time or is sent to a particular place at the same time.
battery β Batteries are small devices that provide the power for electrical items such as radios and children's toys.
body β Your body is all your physical parts, including your head, arms, and legs.
bulk β You can refer to something's bulk when you want to emphasize that it is very large.
bunch β A bunch of people is a group of people who share one or more characteristics or who are doing something together.
bundle β A bundle of things is a number of them that are tied together or wrapped in a cloth or bag so that they can be carried or stored.
cluster β A cluster of people or things is a small group of them close together.