obstruct
Americanverb (used with object)
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to block or close up with an obstacle; make difficult to pass.
Debris obstructed the road.
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to interrupt, hinder, or oppose the passage, progress, course, etc., of.
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to block from sight; to be in the way of (a view, passage, etc.).
verb
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to block (a road, passageway, etc) with an obstacle
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to make (progress or activity) difficult
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to impede or block a clear view of
Other Word Forms
Etymology
Origin of obstruct
First recorded in 1605–15, obstruct is from the Latin word obstructus (past participle of obstruere “to build or pile up in the way, bar”); see ob-, construct
Explanation
When you obstruct something, you block it. If you’re gobbling down your pizza, a chunk of crust you didn’t chew so well might obstruct your airway and you'll choke. Obstruct also means to get in the way so that you hide something from view. That fast food tower being built next to your beach house will obstruct your lovely ocean vistas. And that scene gives you a vivid illustration of the Latin roots the word comes from: ob- "against," and struere, "build." You can also obstruct something or someone by putting up a roadblock, literal or figurative: when you park yourself by the exit door, you obstruct everybody's way out.
Vocabulary lists containing obstruct
The Declaration of Independence
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List 1
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Essential Academic Vocabulary for High School Students, List 3
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Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
It applies to the strait and adjacent waters to "secure transit passage and to deter attempts to close, obstruct or otherwise interfere with international navigation through the Strait of Hormuz."
From Barron's • Apr. 3, 2026
But because he allegedly tried to obstruct the investigation, he faces a separate set of charges on much firmer legal ground.
From Slate • Mar. 11, 2026
The man scouts around the patio and yard area apparently for something to obstruct the camera before settling on some greenery found in the yard.
From Los Angeles Times • Feb. 19, 2026
"No responsible government anywhere in the world can allow people to live directly under high-tension cables or obstruct vital waterways," the governor's special adviser on urban development, Olajide Abiodun Babatunde, said in a statement.
From BBC • Feb. 2, 2026
The road had no heavy load of traffic to support; there were few sharp curves or intersections where brush could obstruct the driver’s vision.
From "Silent Spring" by Rachel Carson
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
