Thatch is a type of roofing material made from plant materials such as straw, reeds, and other grasses. It is a traditional form of roofing that has been used for centuries in many parts of the world. The term 'thatch' can refer to both the material used to make the roof and the roof itself. The crossword solutions for the term 'thatch' are 'HAIR' and 'REED', both of which are commonly used to make thatched roofs. HAIR is usually used to bind the thatch together, while REED is used to create the main structure of the roof.