What is Wood?
Wood is (noun) 1. a hard material which comes from a tree The kitchen table is made of wood. She picked up a piece of wood and put it on the fire. A wood floor would be just right for this room. (NOTE: no plural: some wood, a piece of wood) 2. many trees growing together The path goes straight through the wood. Their house is on the edge of a wood. (NOTE: The plural is woods.) not to see the wood for the trees not to see what is important because you are concentrating only on details (informal.) 3. we’re not out of the wood(s) yet we still have problems There’s still so much to do to the house, we’re not out of the woods yet. 4. a large wooden ball, used in bowls (NOTE: The plural is woods.) 5. a large-headed wooden club, used in golf to drive off from the tee and hit the ball as far as possible He’s trying a new wood. (NOTE: Do not confuse with would.)
source: Easier English, Student Dictionary Upper Intermediate Level