"obstructions" in the noun sense
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
Source: WordNet® (An amazing lexical database of English)
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