Unblock (verb)

1. To remove a blockage or obstruction.
2. To restore normal flow or movement.

Origin:

From un- + block.

Examples:

1. The plumber unblocked the drain.
2. He unblocked the road by removing the fallen tree.
3. She unblocked her writer's block by taking a walk.
4. He unblocked the pipes by using a plunger.
5. She unblocked her sinuses by taking a decongestant.