Verb block up has 1 sense
- barricade, block, blockade, stop, block off, block up, bar - render unsuitable for passage; "block the way"; "barricade the streets"; "stop the busy road"
--1 is one way to obstruct, obturate, impede, occlude, jam, block, close up
Sample sentences:
Somebody ----s something
Something ----s something
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