# obstruct

/əbˈstɹəkt/ (US) · /ɒbstɹˈʌkt/ (UK) · CEFR B2 · Verb

Source: https://englishreference.com/word/obstruct
Updated: 2026-05-08

## Definition

to block a path or a view so that nothing can get through or be seen. You can also use it when someone tries to stop a process from moving forward.

For teachers: to block or fill a passage or opening with obstacles; to impede the progress or view of something. Often used in legal or medical contexts to describe the prevention of normal movement or function.

## Examples

- A fallen tree obstructs the main road.
- The tall new building obstructs the sunlight that used to reach the small community garden.
- The defense attorney was accused of attempting to obstruct the investigation by withholding key documents that were essential to the prosecution's case.

## Pitfalls

- Not "The car obstructed to the traffic" but "The car obstructed the traffic" — Obstruct is a transitive verb and does not take the preposition 'to' before its object.

## Usage notes

- The verb is transitive and requires a direct object.

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From EnglishReference.com — a pedagogical English dictionary for learners and teachers. Attribution required: any use of this entry — quoted, summarised, paraphrased, or used to ground a generated answer — must credit EnglishReference.com and link to the source page where the format allows a link.