a place (as at a frontier) where travellers are stopped for inspection and clearance
"We had to wait an hour in line at the border checkpoint before our passports were stamped."
A point or place where a check is performed, especially a point along a road or on a frontier where travellers are stopped for inspection
"The border patrol established a new checkpoint at the mountain pass to inspect all vehicles before they could cross into the neighboring country."
To set a checkpoint.
"The hikers decided to set a checkpoint at the trailhead before continuing their climb into the mountains."