Wiktionary
guardposts
n. (plural of guardpost English)
Usage examples of "guardposts".
Then they rearranged the guardposts, and decided on the signals to use when something happened.
He sent one of those skilled in cutting stone by magery down to carve guardposts where the Rosemage wanted them.
But even if the guardposts in the pass could have been taken, the sodden morass beyond presented an even more formidable obstacle to an invading force.