Communication awareness beware of word-blocking to a process

The action or fact of blocking or obstructing someone or something.

Word blocking: "the issue led to the disruption of classes and the blocking of the Kakata highway by angry students"

to block or close up with an obstacle; make difficult to pass: Debris obstructed theroad. to interrupt, hinder, or oppose the passage, progress, course, etc., of. to blockfrom sight; to be in the way of (a view, passage, etc.)