Silo

Grain bins in Cashton, Wisconsin
Grain elevators are composed of groups of grain silos, such as these at Port Giles, South Australia.
Silos in Acatlán, Hidalgo, Mexico

A silo (from Ancient Greek σιρός (sirós) 'pit for holding grain') is a structure for storing bulk materials.

Silos are commonly used for bulk storage of grain, coal, cement, carbon black, woodchips, food products and sawdust. Three types of silos are in widespread use today: tower silos, bunker silos, and bag silos.

Silos are used in agriculture to store fermented feed known as silage.