obstruct
ob·struct [obstruct obstructs obstructed obstructing] BrE [əbˈstrʌkt] NAmE [əbˈstrʌkt] verb (formal)
1. ~ sth to block a road, an entrance, a passage, etc. so that sb/sth cannot get through, see past, etc
•You can't park here, you're obstructing my driveway.
•First check that the accident victim doesn't have an obstructed airway.
•The pillar obstructed our view of the stage.
2. ~ sb/sth to prevent sb/sth from doing sth or making progress, especially when this is done deliberately
Syn: ↑hinder
•They were charged with obstructing the police in the course of their duty.
•terrorists attempting to obstruct the peace process
Idiom: ↑obstruct justice
See also: ↑pervert the course of justice
Verb forms: 
Word Origin:
late 16th cent.: from Latin obstruct- ‘blocked up’, from the verb obstruere, from ob- ‘against’ + struere ‘build, pile up’.
Example Bank:
•First check that the accident victim doesn't have an obstructed airway.
•He accused terrorists of attempting to obstruct the peace process.
•You can't park here, you're obstructing my driveway.
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