- a small, shallow box, often cylindrical, for holding pills
- a low, enclosed gun emplacement of concrete and steel
- a woman's cylindrical hat with a low, flat crown
See pillbox in American Heritage Dictionary 4
- A small box for pills.
- A woman's small hat with upright sides and a flat crown.
- A low-roofed concrete emplacement for a machine gun or antitank gun.
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