The muscular digestive organ found in birds, reptiles, and some other animals, used for grinding food.
A bird's gizzard serves to grind up the food it eats.
A bag filled with sand, used for flood control, weight, or other purposes. Cross-referenced with 砂袋.
See also: 砂袋
We stacked sandbags in front of the house in preparation for the flood.
Alternative spelling using kana for のう; may be easier to read for some learners.
Compound of 砂 (sand) and 嚢 (sac, pouch). The 'gizzard' sense comes from the organ's sandpaper-like function; the 'sandbag' sense is a literal sand-filled bag.