Obstruct

Obstruction may refer to: Obstruction theory, in mathematics Obstruction set in forbidden graph characterizations, in the study of graph minors in graph theory Obstruction of justice, the crime of interfering with law enforcement Obstructing government administration Propagation path obstruction Single Vegetative Obstruction Model The Five Obstructions, a 2003 film Obstruction Island, in Washington state Obstruction Islands, east of New Guinea Emergency Workers (Obstruction) Act 2006