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obstruct (v.)

1610s, "to block or stop up with obstacles or impediments," a back-formation from obstruction or else from Latin obstructus, past participle of obstruere "build up, block, block up, build against, stop, bar, hinder," from ob "in front of, in the way of" (see ob-) + struere "to pile, build" (from PIE *streu-, extended form of root *stere- "to spread"). Figurative sense of "to hinder, impede, retard, delay" (justice, the law, etc.) is by 1640s. Related: Obstructed; obstructing.

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Definitions of obstruct

obstruct (v.)
hinder or prevent the progress or accomplishment of;
Synonyms: blockade / block / hinder / stymie / stymy / embarrass
obstruct (v.)
block passage through;
obstruct the path
Synonyms: obturate / impede / occlude / jam / block / close up
obstruct (v.)
shut out from view or get in the way so as to hide from sight;
The trees obstruct my view of the mountains
Synonyms: block
From wordnet.princeton.edu