1. (

• obstruction ,
• obstructor ,
• obstructer ,
• impediment ,
• impedimenta ,

) any structure that makes progress difficult ;

2. (

• obstruction ,
• blockage

) the physical condition of blocking or filling a passage with an obstruction ;

3. (

• obstacle ,
• obstruction

) something immaterial that stands in the way and must be circumvented or surmounted; "lack of imagination is an obstacle to one's advancement"; "the poverty of a district is an obstacle to good education"; "the filibuster was a major obstruction to the success of their plan" ;

4. (

• obstruction ,

) the act of obstructing; "obstruction of justice" ;

5. (

• obstruction

) getting in someone's way ;