shur is a proper place-name marking a wilderness area, route, or territorial boundary in the cited passages.

The supplied passages use the term as a proper place-name: it identifies the wilderness reached after the Red Sea, a way leading through the wilderness, and a location used to mark settlement, travel, and military boundaries.

1. Geographic place-name in routes and boundaries · dominant

   All six occurrences are tagged as a proper noun and place the name within geographic relations. In Exodus 15:22 the APB renders Israel as coming toward “the wilderness of Shur”; in Genesis 16:7 it locates a spring “on the way to Shur,” while Genesis 20:1 and Genesis 25:18 use it to mark where people dwelt. In 1 Samuel 15:7 and 1 Samuel 27:8, the APB presents it as a limit in descriptions of Saul's campaign and David's route.

   1 Samuel 15:71 Samuel 27:8Exodus 15:22Genesis 16:7Genesis 20:1Genesis 25:18

In the Anselm Project Bible: The APB retains “Shur” as a place-name in every supplied verse, variously within “the wilderness of Shur,” “the way to Shur,” and boundary expressions such as “as far as Shur.” These phrases show the verse-level setting rather than a separate English definition.