wood
‘wood’
Wood is the material which forms the trunks and branches of trees, and which is used to make things such as furniture.
He made a shelf out of a piece of wood.
The wood of the window frames was all rotten.
Be careful
Don't refer to a piece of wood as ‘a wood’.
Don't refer to a piece of wood as ‘a wood’.
‘wooden’
You don't usually use ‘wood’ in front of a noun to say that something is made of wood. Use wooden.
She kept their toys in a wooden box.
They were all sitting at a long wooden table.