'Wilderness' in the Bible

Jehoiada's son Benaiah then approached Joab, attacked him, killed him, and had him buried at Joab's home in the wilderness.

Baalath, and Tamar in the wilderness,

and ran for a day's journey deep into the wilderness. He found a juniper tree, sat down under it, and prayed that he could die. He asked God, "Enough! LORD! Take my life, because I'm not better than my ancestors!"