gil.bo.a is the place named as Israel’s encampment and the setting of Saul’s defeat and death.

The term is consistently a proper place-name: it marks Israel’s encampment before conflict, the mountain where Israel’s slain and Saul’s family were found, and the location invoked in lament over Saul’s death.

1. Place-name in Saul’s final conflict · dominant

   The form is tagged Noun · Proper in every occurrence and identifies a location in the accounts surrounding Israel’s conflict with the Philistines. In 1 Samuel 28:4 the APB renders Israel as encamped there; in 1 Samuel 31:1 and 1 Samuel 31:8 it renders the slain and Saul’s sons on Mount Gilboa, while 2 Samuel 1:21 addresses its mountains in a lament and 2 Samuel 21:12 locates Saul’s striking down there.

   1 Samuel 28:41 Samuel 31:11 Samuel 31:82 Samuel 1:212 Samuel 1:62 Samuel 21:12

In the Anselm Project Bible: The APB usually presents the name with "Mount Gilboa" when describing the battlefield, but uses "Gilboa" for Israel’s encampment, the addressed mountains, and the report of Saul’s death. These English forms show the verse-level presentation rather than separate meanings of the term.