OBSTRUCTION

Definition

1. noun any structure that makes progress difficult. — synonyms: obstructor, obstructer, impediment, impedimenta
2. noun the physical condition of blocking or filling a passage with an obstruction. — synonyms: blockage
3. noun something immaterial that stands in the way and must be circumvented or surmounted. — synonyms: obstacle
4. noun the act of obstructing.
5. noun getting in someone's way.