A place of confrontation.
A barrier constructed across a road, especially as a military defence
An obstacle, barrier, or bulwark.
to close or block a road etc., using a barricade
to keep someone in (or out), using a blockade, especially ships in a port
A disagreement; difference of opinion; dissension; quarrel.
A mistake as to the meaning of something or a specific point of view; erroneous interpretation or comprehension; misconception.