• 俵たわら — straw bag (especially for rice)
• 米俵こめだわら — rice bag
• 砂俵すなだわら — sand bag
• 炭俵すみだわら — charcoal bag
• 土俵どひょう — sumo ring (originally made of straw bales)

俵 combines 亻 (person) with 表 (surface, exterior). It originally depicted a person carrying something wrapped, which evolved into the meaning of a straw sack or bale for storing and transporting goods like rice or grain.

米俵こめだわらを 倉庫そうこに 運はこびました。
I carried the rice bales into the warehouse.

土俵どひょうに 力士りきしが 上のぼる。
A sumo wrestler steps into the ring.