11 letters · 20 points in Scrabble
noun deciduous tree of southeastern United States and Mexico
noun shrubby thorny deciduous tree of southeastern United States with white flowers and small black drupaceous fruit
noun wood of the shittah tree used to make the ark of the Hebrew Tabernacle
originFrom shittim (plural of "shittah") + wood.
Etymology from Wiktionary, CC BY-SA 3.0