the.com/obstruction

The art of being in the way, legally or otherwise.

means Something that blocks, clogs, or stands in the way of progress, movement, or process — whether a physical barrier, a legal maneuver, or a pipe full of grease.

from From Latin obstruere — ob- 'against, in front of' plus struere 'to build, to pile up' (the same root that gives us 'structure' and 'construct'). So an obstruction is literally something 'built up against' you: a wall assembled, brick by brick, directly in your path.

legal use
Obstruction of justice is its own crime, separate from the original one
sports rule
In cricket and baseball, blocking a play can get you penalized
medical term
Bowel obstruction can turn fatal within days untreated
political classic
Filibusters are obstruction wearing a suit and tie
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