blockage = state of being blocked
- A blockage in a coronary artery
- The pumps are prone to blockage
- There is a blockage in the drain pipe.
blockade = the enclosing or surrounding of a place to keep goods or people from entering or leaving
- The authorities blockaded roads in and out of the capital.
- Striking lorry drivers agreed to lift their blockades of main roads.
- The militant protesters blockaded the whole area around city hall.