barricade
noun
a defensive barrier hastily constructed, as in a street, to stop an enemy.
Used to describe an action that began in the past, has continued continuously, and is still in progress.
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
It opens doors that are locked to all the rest of the world; it tears down barriers, century-old, that have been barricading certain places for ages past.
From Flash-lights from the Seven Seas by Francis John McConnell