Covering wheat is an important part of the agricultural process. AWN is a three-letter word meaning a protective covering, such as a roof or canopy. SHEAF is a five-letter word referring to a bundle of grain stalks, usually tied together. CROP is a four-letter word meaning the yield of plants or animals from a particular area or period of time. BRAN is a four-letter word referring to the outer layer of a grain, which is separated from the endosperm during milling. DURUM is a five-letter word referring to a type of wheat with a high protein content. THRESH is a six-letter word meaning to separate the grain from the husks and straw by beating or trampling. SPELT is a five-letter word referring to a type of wheat that is an ancient ancestor of modern wheat.