wool
nounUK /wʊl/
US /wʊl/
Wool is the soft, thick hair that grows on sheep.
My winter sweater is made of warm wool.
OTHER MEANINGS
2. The material made from sheep's hair, used to make clothes and blankets.
She bought a ball of wool to knit a scarf.
3. Any soft, thick hair, such as that on some animals or plants.
The cotton plant is covered in soft white wool.
4. A fabric or garment made from wool.
He wore his wool to the party because it was cold.