1. A box for pills; esp. one which has 7 compartments for the days of the week, to be used as a reminder as to whether you've taken your medication today.

2. A small round hat without a brim.

3. A low concrete shelter designed to allow weapons to be fired from it.

4. A computer game for the TRS-80 circa 1981 in which two players attempt to fire guns at one another from separate pillboxes³ and over a hill. A direct hit on the gun-firing-hole of the other pillbox is required to score, at which point the computer draws a new hill and set of pillboxes. Players take turns shooting, each time choosing an angle and velocity with which to fire. This is essentially an early predecessor of the game Scorched Earth.