any of a series of vaults or galleries in an underground burial place: usually used in pl.
Origin of catacombMiddle English catacumb; ultimately Late Latin catacumba, plural catacumbae, region between 2d and amp; 3d milestones of the Appian Way, Catacombs; probably by dissimilation ; from Classical Latin cata tumbas, at the graves ; from cata (; from Classical Greek kata, down), by + tumbas, accusative plural of tumba, tomb
- often catacombs An underground cemetery consisting of chambers or tunnels with recesses for graves.
- An underground, often labyrinthine passageway.
Origin of catacombProbably French catacombe, from Old French, from Late Latin catacumba.
Often used in the plural.