shut out from view or get in the way so as to hide from sight; "The thick curtain blocked the action on the stage"; "The trees obstruct my view of the mountains"
hinder or prevent the progress or accomplishment of; "His brother blocked him at every turn"
(law) the administration of justice according to established rules and principles; based on the principle that a person cannot be deprived of life or liberty or property without appropriate legal procedures and safeguards