columbariumn.

pigeon compartment/cot/hole; collar for constraint, pillory; niche in sepulcher box for pair of pigeons; niche in sepulcher for ashes; hole for oars, oarlock; hole for beam; exit of water-wheel near axle; dove-cot, pigeon house (L+S); pigeon-keeper; oarsman (term of reproach) (L+S);