obstruction

Universal Words noun 1 [U,C] the fact of trying to prevent sth/sb from making progress: the obstruction of justice * He was arrested for obstruction of a police officer in the execution of his duty. 2 [U,C] the fact of blocking a road, an entrance, a passage, etc: obstruction of the factory gates * The abandoned car was causing an obstruction. 3 [C] something that blocks a road, an entrance, etc: It is my job to make sure that all pathways are clear of obstructions. 4 [C,U] something that blocks a passage or tube in your body; a medical condition resulting from this: He had an operation to remove an obstruction in his throat. * bowel / intestinal obstruction 5 [U] (sport) the offence of unfairly preventing a player of the other team from moving to get the ball