'Tree' in the Bible

And the king of Ai he hanged on a tree until eventide: and as soon as the sun was down, Joshua commanded that they should take his carcase down from the tree, and cast it at the entering of the gate of the city, and raise thereon a great heap of stones, that remaineth unto this day.

And their limit was from Heleph, from the oak-tree in Zaanannim, and Adami-hannekeb and Jabneel, as far as Lakkum, ending at Jordan;

He wrote these words in the Book of the Law of God, took a large stone, moved it under the shade of the oak tree that was near the sanctuary of the LORD,