Thatch

Part of speech: noun (n.)

1. Straw, rushes, or the like, used for making or covering the roofs of buildings, or of stacks of hay or grain.

2. A name in the West Indies for several kinds of palm, the leaves of which are used for thatching. Thatch sparrow, the house sparrow. [Prov. Eng.]

Part of speech: verb (v.)

To cover with, or with a roof of, straw, reeds, or some similar substance; as, to thatch a roof, a stable, or a stack of grain.