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"blockage" is also used as a crossword clue. If that's what you saw, the answer is often obstruction (11 letters).
Definitions
the act of blocking
Word origin
From block + -age.
Used in a sentence
“There was a blockage in the sewer, so we called out the plumber.”
“Blockage of circulation quickly leads to ischemia.”
“In selected cases, endovascular thrombectomy can quickly remove a blockage that pharmaceutical thrombolysis can't budge.”
Source: Wiktionary, CC BY-SA 4.0
Used as a crossword answer1 curated clues
01“Obstruction in a passage”8 letters
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