/ Dictionary / Index O obstruct: Meaning and Definition of Find definitions for: ob•struct Pronunciation: (ub-strukt'), [key] — v.t. to block or close up with an obstacle; make difficult to pass: Debris obstructed the road. to interrupt, hinder, or oppose the passage, progress, course, etc., of. to block from sight; to be in the way of (a view, passage, etc.). Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: obstruct (Thesaurus) obstreperous obstruction Related Content Daily Word Quiz: apogee Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language